A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
For future reference to everyone on what the difference is. Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force. Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft. The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do. No self-indulgent waffling. Just useful information. Thank you very much.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property. Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done. Wish I had seen t his video before I bought that hammer drill... Live and learn.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials. Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has.... With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
Great comparison! I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
Great video! I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
There is a big difference between 1/2" SDS masonry bits and 1/2"round shank masonry bits. There's a bigger difference between a rotary hammer that weighs and costs 3-4x as much as a 1/2" hammer drill. A hammer drill introduces some vibration, a rotary hammer applies spring loaded impacts. A 1/2 hammer drill is a drill that can handle occasionally drilling through masonry. A rotary hammer is the electrical replacement for a stra chisel and a hammer.
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Good Day! I hope you're enjoying a pleasant one. At about 1:20 where you advise about letting the machine have a good bounce. I used to restore vintage power tools, going back to the early 1900's, and some came with original instructions. More than once the Ol' Timey Instruction authors, while writing about how much pressure to use with the machine in question, power drills, saws, and such, advised to use just the right amount of pressure to let the tool do the work, and also warned not to "Crowd" the tool. I feel pretty certain you didn't pay a pile of money for your power tool so you can get a stiff muscle somewhere while trying to Force (Crowd) the machine, and not allow it to do the work for you. This video is my first introduction regarding the usefulness of the Rotary Hammer. I like it, and believe it to be an Excellent demonstration. Thank You for taking the time to create and post it. Enjoy! ~ john b.
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
Hammer drills are good for smaller holes like for tap cons etc. If you are drilling holes larger than 1/2" or deep holes a rotary hammer is the way to go. The average homeowner should probably just stick with a hammer drill. I've drilled tens of thousands of holes with each.
Nope, buying a rotary hammer drill was the best investment I have ever made. My home was built out of concrete. There wasn't a single drywall. My hammer drill could not go drill through the walls without me exerting over 50kg of pressure.
That's why this guy isnt showing a realistic demonstration, by using an over sized bit. I've framed my entire basement treated boards to the concrete, with my Dewalt corded 10 amp hammer drill for my tap-cons and it went through the wood and concrete in 20 seconds each time like butter. This is a biased guy here. Look at the size of the damn bit. That's what makes this a shitty comparison. I think your next comparison should be between a boat and a truck, bc both are used for transportation but by different means. Same thing.
That's the same experience i had, the only probably with rotatory drills is that they do not give a clean hole, in other words, if you want to drill a hole all the way trough it will come out with a chunk of concrete...
Has anyone else noticed the the rotary hammer is 3 times the size of the hammer drill? Sheer physics would indicate that it would go through faster under its own weight with equal drill bits, pushing or not.
hi. i really appreciate this video. more importantly what did you use to cut out that slab of concrete? we are looking to cut a similar opening but 18" thick.
In my experience hammer drills excel in drilling cinder block and brick. Whereas a rotary will either crack cinder blocks or explode a brick in half. Just got to have the right tool for the job.
4:39... When you play off the wrist twister as if it didn't hurt at all to keep a manly reputation amongs other old school short short wearing craftsmen.
This is my second time coming to this video after a year, it was flawless last time with a hammer drill. This time I'm stuck with 3 holes against an aggregate using the same hammer drill and getting concerned with my hands getting tremors. Time to invest on a rotary hammer 💰
Good video. Nice info and demonstration. Not applicable though for the average homeowner looking to install a railing on their front porch or the weekend warrior. They simply can't justify spending $400 on a tool to drill 8 holes when they can go to Harbor Freight and buy a hammer drill for $40 that will do the job (in much more time give you). Yes the pros NEED these higher end tools for everyday heavy abuse and speed required for their application but if you're on a budget you can't always afford these workhorses. It also doesn't hurt to drop $100 on a good bit either.
Exactly, and you can drill the same hole using "regular hammer drill" just takes longer, for home use hammer drill (corded!) is BEST tool ever. You can work on wood/plastic/concrete/mix paint/cement etc. etc. etc. ONE drill regular person will ever need for most of the jobs.
Yeah, If you only use it once in your life. Once you get a tool that others need they will pay you to drill them or rent your tool from you. It's a big picture.
The general name for the category is hammer drill. An ordinary (cheap) hammer drill has a clutch for the hammering action. A special (expensive) hammer drill known as a rotary hammer has a piston mechanism. It delivers a significantly harder pounding action. You can really feel it, the piston packs a helluva punch. Read the wikipedia article on Hammer drill.
Not sure why the criticism, but this was a very helpful video. FWIW, there is no fundamental difference between a hammer and rotary hammer. Rotary hammers are typically more powerful and use more sophisticated design to allow the designers a broader range of control of hammer vs. rotational forces. They are doing BASICALLY the same thing, but rotary hammers are in (most) all cases the better choice.
The BPM is fixed on the rotary hammer drill, while the BPM and RPM is variable on the hammer drill. When using the hammer drill at the best setting in the trigger you can accomplish a lot, for the price. For the average person, when you correctly set the RPM, the hammer drill will be just fine.
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools. My makita is same size as your dewalt and the aeg is huge like your roto
the biggest difference in both is that Hammer drill uses standard chuck and rotary hammer uses SDS chuck and bits, SDS lets the bit itself move back and forth within the head. Hammer drill moves with the whole head back and fort but only few mm but the bit and chuck are solid like one piece
You were right to get a rotary hammer seeing as hammer drills arn't designed to drill into concrete. Hammer drills are designed for brick and various other things, just not concrete. It's hard to beat Milwaukee corded tools but Bosch is top dawg when it comes to hammers imo.
Obviously rotary hammer is the way to go if you're drilling lots of concrete. But for home use when you just occasionally need to drill a hole or two. Hammer drill is fine. It's more versatile as well as it can do other smaller projects.
Stop arguing about the difference and look it up on wikipedia. Good video. His point about rotary hammers being easy on the user is spot on. Many even have dampeners in handle.
its fuuny many of the comments are about the guy outfit, i didnt even notice his outfit , but back to the video, is the dewalt the 12amp one also either way, one is around 100$ and the other is like 300$ +
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property. Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Put this in slow motion and watch the chuck on the yellow drill first it's going in reverse as it struggles to drill, no wonder the other drill went through like butter as it was going the proper direction
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight... I need a Rotary Hammer Drill!!
While it's true that the possibly granite aggregate in my mix was not even detectable to me in my drilling, I've never done what you're planning on doing with whole field stones. It should work well...but I wonder whether you'd going through more carbide-tipped bits, or going a bit more slowly, or paying some additional price anyway.
Great video...wonder if you could assist this 87 year old man who wants to drill a hole in my door hinge which needs a larger screw. its an old pre hung door so through the years the top hinge has messed up with the one inch screw they installed. I want to drill a hole deep enough to get past a 1/2" wood jamb, some concrete which was made for the opening of the wall to install the door and then comes the house brick. I would need to put an anchor into that brick for the screw, I was told. Could you suggest what to get for a one time job? Thanks
If there is no aggregate in the concrete, and if it's young, and especially if it wasn't made of the harder types, then a hammer drill might work for you. The hammer drill would more likely be the tool that would be more useful around the house in general than a rotary hammer, cost you less, and be more easily found at Home Depot/Lowes, etc. But if the concrete is harder, thicker, has aggregate, whatever, and proves difficult for a hammer drill, then a rotary hammer with the appropriate bit size will make the hole you need through the concrete. It might destroy the brick if you take the bit that far, though. I like the Tapcon screws for brick or mortar. The rotary hammer will probably cost you more. Also, rebar WILL stop any carbide bit, so use any tools at your disposal, including your wit, to avoid that situation.
Eleven years later (5.26.2023) and this video is still the most helpful one I have found on the subject!!! Thanks for posting it.
A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
Fghsdjiig
Omg lol. I read this 3 times before the video actually started and I did not understand until watching the video 🤣
Need the sneaks too to really kick it up a notch
Where can I get those shorts? Nice video man.
@@brandyprice7578 KO l la
For future reference to everyone on what the difference is.
Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force.
Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft.
The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
I’m drilling into an inch thick blue stone capstone so I can run a wire to a lamp. Which is best for this job? The hammer or the rotary?
Rotary always especially through brick. Some are harder than rock no kidding!
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
didn’t know 😆
One of the more straightforward and concise tool demos I've seen anywhere. Told me what I needed to know, thanx much!
11 years later and you probably got best straight forward explanation I watched online. Cheers
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do.
No self-indulgent waffling. Just useful information. Thank you very much.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Depends on what you are doing with it.
7 years later and now I’m being informed enough to realize I need the rotary hammer. Glad I didn’t open the box of the new hammer drill I just got.
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property.
Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Yea its multi purpose.
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
The shorts are lit
Lmao
Pair that with romper and were set
Lmmfao
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done.
Wish I had seen t his video before I bought that hammer drill... Live and learn.
drill a 1/4" pilot hole first. Then drill your !' hole. You may find it will cut your time down to 10-15minutes.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials.
Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
Thank you for this tidbit of info. It really helps to understand which situation is best for either tool.
Thanks
Not every rotary hammer is meant for demolition. The smallest ones have 1.7 Joule of energy, a proper demolition hammer has 7.5 Joule and up.
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
This might be the best commercial for a rotary hammer I've seen.
But that is what rotary hammers are for, drilling into concrete.
Clive Ellis Pretty much to to extend productivity
Lol
You can also get chisel bits for rotary hammer for removing tile.
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has....
With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
Bud you just saved me about 150 bucks and some serious headaches. I appreciate you.
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
Great Job on the demonstration
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
Wow, wish I saw this yesterday before drilling those holes in my brick - my hammer drill took FOREVER on just a few holes. Thanks for sharing!
Did you have your bit all the way against the back of the chuck? If not the hammer won't tap the bit
You used hammer bit? Designed for hammering cant use regular bits meant for drilling wood and metals.
Counted the time for each:
30 seconds for hammer drill
12 seconds for rotary hammer
What you didn't count was the amount of force needed to push the hammer drill vs. the significantly smaller force needed for the rotary hammer drill.
@@edinfific2576 I'm about to hop in my time machine and let this fool know he should be measuring the FORCE as well!
@@edinfific2576 yeah he didn’t count that
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
That was a very good comparison of the 2 drills. Thanks
The hammer drill is a multipurpose tool for smaller jobs.
The comparison is null
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
Great comparison!
I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
i bought a hart 20v hammer drill
I spent 2 hours drilling 4 little holes last weekend. Should have watched this 1st.
Folks who come up with designs for these tools & engineers who find ways to build them to make our lives so much easier are awesome.
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
Very good and informative demonstration. Thank you.
This is exactly what I needed, just bought a house made of mostly concrete!
Adjust the front handle to 90 degree to the trigger handle for a better hold... the way you have it is for transportation or storage.
This is my submachine hammer gun
I just bought a hammer drill, now I can see I really needed a rotary hammer.
2:12 "One of the best holes I've drilled!!"...slogan of the decade.
brother was surprised how good of a hole he drilled so he wanted to drill a worse one next
Side by side reviews are the best. Good work
Great video, but those 80's Larry Bird / John Stockton booty shorts are killing me!! Lol
really tho...
hey man! it was 2011 when he did this; fashion was a whole different world back then :)
in 2011 i was 37 and was NOT wearing short shorts .. EVER ...
😂😂😂😂😂
he got a nice pair of legs - why bother?
If you clear the dust out occasionally as you drill, it won't bind and spin on you, and you won't have to pull so hard to get the bit out of the hole.
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
imaslowlerner Slam a review up. They don't just go walkies.
You're the best coach and you're experience is real
This is my uncle. He's like this in real life too.
Great video!
I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
Using impact drill for concrete drilling is like trying to cut meat with a dull knife. Rotary hammer is a proper tool for concrete and stone drilling
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
Happy 17th anniversary on uploading this video. Over a million views! Cheers! (good video, rotary hammers are no joke)
The rotary hammer best especially for major jobs
There is a big difference between 1/2" SDS masonry bits and 1/2"round shank masonry bits.
There's a bigger difference between a rotary hammer that weighs and costs 3-4x as much as a 1/2" hammer drill. A hammer drill introduces some vibration, a rotary hammer applies spring loaded impacts. A 1/2 hammer drill is a drill that can handle occasionally drilling through masonry. A rotary hammer is the electrical replacement for a stra chisel and a hammer.
Hammer drill is for small holes rotary hammer is for a contractor or someone who anchor things daily
As a leg fan and a leg lover, I would say that these are the prettiest legs I have ever seen.
Are you male or female ?
@@handyman7297 Hermaphrodite
I feel so dump. I always thought rotary drill is for wood & drywall, and hammer drill is for concrete. Your video really proves me wrong.
Great legs man!! And the video was super helpful too!! Thanks!
The struggles explained👍
I personally find hammer drills work best for 1/4 and smaller holes, especially with concrete screws.
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Good Day! I hope you're enjoying a pleasant one. At about 1:20 where you advise about letting the machine have a good bounce. I used to restore vintage power tools, going back to the early 1900's, and some came with original instructions. More than once the Ol' Timey Instruction authors, while writing about how much pressure to use with the machine in question, power drills, saws, and such, advised to use just the right amount of pressure to let the tool do the work, and also warned not to "Crowd" the tool. I feel pretty certain you didn't pay a pile of money for your power tool so you can get a stiff muscle somewhere while trying to Force (Crowd) the machine, and not allow it to do the work for you. This video is my first introduction regarding the usefulness of the Rotary Hammer. I like it, and believe it to be an Excellent demonstration. Thank You for taking the time to create and post it. Enjoy! ~ john b.
It sucks when you start drilling and hit rebar.
Use a very strong magnet first to check!
HealthIsPower tks for the idea bro
or a water or gas conduit ;-)
Sky Pup what happens when you hit a post tension cable? I've never come across those
Jose Gomez it compromises it, gotta replace it.
without any arguments, rotary hammer drill is the only way to go......
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
oh this explained why it took me so much times to drill a hole, my hammer drill just doesn't work on concrete
Sweet video! Does that rotary have a hammer only function? I am wondering how it fairs against an air hammer for chiseling.
Thanks for the video. It helped me to decide to spend the extra money and buy a third drill.
You sound like bill paxton, anyway can we use this for breaking the concrete, how effective will it be?
Hammer drills are good for smaller holes like for tap cons etc. If you are drilling holes larger than 1/2" or deep holes a rotary hammer is the way to go. The average homeowner should probably just stick with a hammer drill. I've drilled tens of thousands of holes with each.
I’d listen to Tim Allen’s brother on this 👍🏼
Nope, buying a rotary hammer drill was the best investment I have ever made. My home was built out of concrete. There wasn't a single drywall. My hammer drill could not go drill through the walls without me exerting over 50kg of pressure.
Thanks Tim Allen, I mean Tom Allen
That's why this guy isnt showing a realistic demonstration, by using an over sized bit. I've framed my entire basement treated boards to the concrete, with my Dewalt corded 10 amp hammer drill for my tap-cons and it went through the wood and concrete in 20 seconds each time like butter.
This is a biased guy here. Look at the size of the damn bit. That's what makes this a shitty comparison. I think your next comparison should be between a boat and a truck, bc both are used for transportation but by different means. Same thing.
That's the same experience i had, the only probably with rotatory drills is that they do not give a clean hole, in other words, if you want to drill a hole all the way trough it will come out with a chunk of concrete...
Has anyone else noticed the the rotary hammer is 3 times the size of the hammer drill? Sheer physics would indicate that it would go through faster under its own weight with equal drill bits, pushing or not.
Rotary Hammer drills are the way to go but dang....that hammer drill is quality, the ones I've used take longer than that.
Nice video. How many people helped getting that big concrete chunk up from your basement ?
hi. i really appreciate this video. more importantly what did you use to cut out that slab of concrete? we are looking to cut a similar opening but 18" thick.
He most likely used a diamond tipped concrete saw of some sort
In my experience hammer drills excel in drilling cinder block and brick. Whereas a rotary will either crack cinder blocks or explode a brick in half. Just got to have the right tool for the job.
Its not the speed of the drill but the blow force of the impact on the drill bit that counts. Measured in joules
Great video. Now deciding on the rotary hammer drill. What features are good (eg blows per minute, amps, etc)
4:39... When you play off the wrist twister as if it didn't hurt at all to keep a manly reputation amongs other old school short short wearing craftsmen.
Wow, this is a nice lesson and a convincing comparison. Gonna go shopping . . .
Thank you!
This is my second time coming to this video after a year, it was flawless last time with a hammer drill. This time I'm stuck with 3 holes against an aggregate using the same hammer drill and getting concerned with my hands getting tremors. Time to invest on a rotary hammer 💰
Good video. Nice info and demonstration. Not applicable though for the average homeowner looking to install a railing on their front porch or the weekend warrior. They simply can't justify spending $400 on a tool to drill 8 holes when they can go to Harbor Freight and buy a hammer drill for $40 that will do the job (in much more time give you). Yes the pros NEED these higher end tools for everyday heavy abuse and speed required for their application but if you're on a budget you can't always afford these workhorses. It also doesn't hurt to drop $100 on a good bit either.
Exactly, and you can drill the same hole using "regular hammer drill" just takes longer, for home use hammer drill (corded!) is BEST tool ever. You can work on wood/plastic/concrete/mix paint/cement etc. etc. etc. ONE drill regular person will ever need for most of the jobs.
Yeah, If you only use it once in your life. Once you get a tool that others need they will pay you to drill them or rent your tool from you. It's a big picture.
The general name for the category is hammer drill.
An ordinary (cheap) hammer drill has a clutch for the hammering action.
A special (expensive) hammer drill known as a rotary hammer has a piston mechanism. It delivers a significantly harder pounding action.
You can really feel it, the piston packs a helluva punch.
Read the wikipedia article on Hammer drill.
Not sure why the criticism, but this was a very helpful video.
FWIW, there is no fundamental difference between a hammer and rotary hammer. Rotary hammers are typically more powerful and use more sophisticated design to allow the designers a broader range of control of hammer vs. rotational forces. They are doing BASICALLY the same thing, but rotary hammers are in (most) all cases the better choice.
The BPM is fixed on the rotary hammer drill, while the BPM and RPM is variable on the hammer drill. When using the hammer drill at the best setting in the trigger you can accomplish a lot, for the price. For the average person, when you correctly set the RPM, the hammer drill will be just fine.
no
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools.
My makita is same size as your dewalt and the aeg is huge like your roto
the biggest difference in both is that Hammer drill uses standard chuck and rotary hammer uses SDS chuck and bits, SDS lets the bit itself move back and forth within the head. Hammer drill moves with the whole head back and fort but only few mm but the bit and chuck are solid like one piece
The difference is night and day, and with Bosch Speedxtreme bits it'll drill through the rebar.
Thanks for sharing. That rotary hammer drill is a beauty.
He sounds a little like Beavis.
Thanks for the info and video! I'm wall mounting a massive tv and now I know I'm going with the rotary!! Thx brother
Jimmy Lee Motta Beavis would like to drill some holes and stuff.
You were right to get a rotary hammer seeing as hammer drills arn't designed to drill into concrete. Hammer drills are designed for brick and various other things, just not concrete. It's hard to beat Milwaukee corded tools but Bosch is top dawg when it comes to hammers imo.
What happens if you drill in the corners of the concrete?
I spent 20 minutes trying to get a hole, too.
Lol I spent way longer than that
That's what she said
Obviously rotary hammer is the way to go if you're drilling lots of concrete. But for home use when you just occasionally need to drill a hole or two. Hammer drill is fine. It's more versatile as well as it can do other smaller projects.
how often are you supposed to clean the inside of hammer drills?
if you want to drill little bit faster you can wet the concrete when you are drilling so that it will not over heat and die out.
OOHRAH!
Stop arguing about the difference and look it up on wikipedia. Good video. His point about rotary hammers being easy on the user is spot on. Many even have dampeners in handle.
its fuuny many of the comments are about the guy outfit, i didnt even notice his outfit , but back to the video, is the dewalt the 12amp one also either way, one is around 100$ and the other is like 300$ +
theres cheaper ones on ebay
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property.
Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Put this in slow motion and watch the chuck on the yellow drill first it's going in reverse as it struggles to drill, no wonder the other drill went through like butter as it was going the proper direction
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight...
I need a Rotary Hammer Drill!!
While it's true that the possibly granite aggregate in my mix was not even detectable to me in my drilling, I've never done what you're planning on doing with whole field stones. It should work well...but I wonder whether you'd going through more carbide-tipped bits, or going a bit more slowly, or paying some additional price anyway.
I wanna know what cut that aggregate concrete as well!
Most likely a diamond tipped concrete saw of some sort
Great video...wonder if you could assist this 87 year old man who wants to drill a hole in my door hinge which needs a larger screw. its an old pre hung door so through the years the top hinge has messed up with the one inch screw they installed. I want to drill a hole deep enough to get past a 1/2" wood jamb, some concrete which was made for the opening of the wall to install the door and then comes the house brick. I would need to put an anchor into that brick for the screw, I was told. Could you suggest what to get for a one time job? Thanks
If there is no aggregate in the concrete, and if it's young, and especially if it wasn't made of the harder types, then a hammer drill might work for you. The hammer drill would more likely be the tool that would be more useful around the house in general than a rotary hammer, cost you less, and be more easily found at Home Depot/Lowes, etc.
But if the concrete is harder, thicker, has aggregate, whatever, and proves difficult for a hammer drill, then a rotary hammer with the appropriate bit size will make the hole you need through the concrete. It might destroy the brick if you take the bit that far, though. I like the Tapcon screws for brick or mortar. The rotary hammer will probably cost you more. Also, rebar WILL stop any carbide bit, so use any tools at your disposal, including your wit, to avoid that situation.
Anthony rrr