The Fastest Rotary Hammer For Drilling Concrete
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- เผยแพร่เมื่อ 15 ธ.ค. 2024
- Not sure which Rotary Hammer to buy? It depends on what you are mostly using it for.
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I’ve drilled thousands of holes with a Bosch bulldog like the one you have. They work best if you don’t bear down hard, it stifles the hammer action.
@@cliffhaupt5413You are right about the drilling efficiency and the pressure applied. It takes a while to discipline yourself to only apply light to moderate pressure - it is counterintuitive. If you have to put all your weight on the tool then the drill bit is probably worn out.
@@gregorymacneil2836 Yeah, It takes you awhile to come to that conclusion because it is so contrary to what you think you know. I put a ton of miles on a bulldog, they keep on keepin on. Though they do have limits. If you have super hard concrete(public safety job, everything was silly overbuilt) even the 5/8ths will just bounce, even with a new bit. Luckily someone had a big Hilti spline hammer drill.
@@gregorymacneil2836 oddly enough I figured out that efficiency as well when Andrew Camarata was learning to chisel huge rock on his channel. Too much pressure and it can't hammer as well and is hard on it, and too light is its own problem... but yeah, moderate pressure... be it a huge equipment like that or just a bulldog, definite sweet spot involved. Can't just go full gorilla on it.
Hi there I've been a contractor for 30 years and the SDS drill works best with just a little bit of pressure and not full on. It needs a bit of space for the hammer action to do it's thing. And you're hands and fore arms will appreciate it too
Yep, leaning hard on a rotary hammer is counterproductive.
@@paulsharpe3794 If you have to apply a lot of pressure your drill bit is probably worn out. The drill bits often develop a taper before the tip wears out - once a taper develops you are trying to drill with the drill flute - that does not work well.
Ive personally worked with essential craftsman B4 and i must say, what a great group of ppl! Thank you for giving me my 1st opportunity for collab 3 years ago! Amazing ppl
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What did you build with them? At the spec house or the contractor yard?
@@jerryminyard7460he done an interview
Perfect! For next video, how to patch concrete!
I love when Scott is one of these moods.
I have an old corded Hilti that will live forever, also have a corded Dewalt with just the hammer option and a cordless hammer/drill, I do love my Festool cordless hammer drill (fast and has sensors that will shut it down before it locks up and puts you through a wall). :)
EC, maybe you could get an interview with a career locksmith for your podcast? Locksmiths occasionally have to spend a few hours operating a heavy drill to open a safe (which is what brought them to mind) and also work with tiny bits of metal, and they deal with all sorts of customers (and their pets, sometimes) in all sorts of places, and can end up knowing their way around town as well as a taxi driver.
Great video and great demonstration
I owned a tool sharpening company before retiring. Get your new roto-hammer bits sharpened, and you'll double or triple your speed.
Dewalt DCH293 1-1/8" roto hammer 20v cordless has been a delight so far... I used to use a Hitachi corded model but the ability to walk away from the outlets and the generator have just been so wonderful. From drilling 1/4" sleeve anchors in for basement floor plates to drilling 5/8" holes 8" deep for pins in street repair patches... it hits hard and drills fast and I really enjoy the convenience. It also has stop action and I have used it with a chisel bit to remove pipe collars in confined space storm inlet structures. Just the ticket.
We appreciate the sacrifice your shop slab has made for this video o7
I have always used Hilti and had great results - Yes, you pay for Hilti but it drills and chips like nothing else. I have only seen Hilti compared to the others online once, and Hilti cleaned up.
In the big 3/4” drive format, Hilti has always been what everyone else tried to be. The upcharge for “Hilti” and Hilti accessories is significant though. Bosch probably runs a consistent 2nd place.
@@psidvicious My Hilti TE24 is 30 years old and has never disappointed me. Hilti Drills are expensive (buy once and cry once) and I do use a Dewalt 20V Atomic for anything less than 1/4" just because it is light in weight.
Hilti and Festool are on a league of their own when it comes to what they do 😅 same for their pricing. Pay to play at the highest level
@@the1ceman I have to admit, I’ve never used a Festool tool. They were just not around when I was still in the field using tools. I will say though, if they were purposely trying for obscenely offensive pricing, they succeeded. I can’t imagine them being that much better, enough to justify the price but I’d love to give them a try and see for myself.
@@psidvicious I own one Hilti and one Festool. My Festool is a 6” random orbital sander. The tool price was ridicules and the vacuum hose price was even more repulsive. It took me a while to make that purchase. That said, I have never used a sander that was so efficient and light weight. The dust control is worth every single penny. Not sure I would buy the Festool collection but I would another sander in a heart beat even if they doubled the price. I would not be comfortable buying a cordless Festool because I don’t think there would be a ROI for me. Makita, DeWalt and Milwaukee battery platforms are expensive enough and good enough.
Scott's definitely right. It's good to have a couple hammer drills. I've found professionally that a cordless drill with hammer action work for occasional concrete work but the concrete dust tends to destroy the chucks over time. I like my corded Bosch and have a couple of homemade attachments like a mini spade, a concrete stake driver and some ballpene hammers to shape metal.
I've used many rotary hammers, they will drill faster if you don't bear down so hard. Hilti recomends 2 to 3 pounds of down pressure. That's the weight of the drill plus 2 pounds. That is where they perform best.
I did termite work in the early 90’s. We used AEG for drilling slabs and Hilti for drilling brick. All day, every day. Those drills never broke down. Ever. Amazing products.
1:17 When you speed something up mid-shot like this please leave the first and last few seconds of the boring part at normal speed so we can get some kind of idea of how slow it actually is.
I am humbled by the fact that you sacrificed your shop floor to further my edification.
Hilti all day for me. Bulldog is definitely nice for certain tasks and ergonomics are excellent.
Yeah, the mid size is all I will ever need, it is been in my tool box for decades, it still works great
If you put too much pressure on SDS+ or SDS Max drill, you will stifle the hammer action. Drill/chisel needs to travel the distance equal to the length of those rounded side-grooves.
What a great intro - well done, well done. I have a feeling this video might perform really well.
the bosch bulldog is incredible - a staple
Thanks for the awesome content and all the great videos!!
I have pushed my Ridgid (same style) for 15+ years - battery fits my new garden tools. I have pushed my Bosch (same style!) for 10+ years - haven't even replaced a bit. I took several trips to Hilti for repairs for the same type of work and could not beleive the difference in pricing for their consumables - which are consumables - changed several of their bits.
I bought a reman Bulldog from Amazon, that rascal hasn't let me down!
I like Bosch because they have a great spare part supply. I have almost fully rebuilt my drill with everything except the Brain box. And rebuilding was only necessary after 4 years of heavy use
I got one just like that and I absolutely love it.
Great job. Thank you 😊
I worked several years with concrete in the past. The #1 tool in my opinion is a Bosch rotohammer. #2 is a Dewalt 4” angle grinder.
I went through 3 (or 4?) warranty replaced dewalt corded 1/2" hammer drills with my homeowner usage of concrete drilling. The last time I thought this was stupid, and instead bought a Bosch SDS Bulldog. It's done 10x the concrete drilling any of those dewalts did, and is still reliable every time I need it. Buy once, cry once.
I love my bosch bulldog. I use it for digging holes.
Tho I love my Bulldog, I often find myself in need of a cordless. The (yellow) one I bought is bigger than the small pistol and more compact than the Bulldog, and surprisingly really gets the job done. I just thought I would call attention to this medium sized battery class of sds hammer drills that are fairly new on the market. A little on the expensive side (around $300, comes in all the regular colors) but for what I need it is invaluable.
I personally like the Makita because it has a lock on button. Basically identical to the Bosh. When you're doing chipping it's pretty nice not to have to constantly squeeze the handle
Just drilled six seven eighths holes ten inch deep with my bulldog. What a champ. its ten years old and has taken care of everything.
I expect project farm to follow this up.
Well … I have drilled many many thousands of holes in concrete with the good ole Hilti hammer drills … make sure to buy quality made drill bits and only apply enough pressure to hold it in place which allows the drill to hammer n rotate into the concrete. I hold a shop vacuum next to the drill bit to vacuum up all of the dust as I am drilling = faster drilling and a clean hole for the anchor
Hi. I'm about to resheet my garage roof with 1/2 plywood. What size nails do I use for this job ? Please let me know. Thank you.
8d
@@essentialcraftsman Thank you !
Why do people ask questions like this on videos when there is an entire internet full of information they can search and get answers quicker?
If you don't need cordless, that Bulldog (at least they used to) will last a long time, even using it a lot. The one drawback is that d-handle inline orientation. Great for drilling straight but if its a tight spot, you're hosed. The milwaukee right angle design battery hammer drills work real nice, the 12v will do most anchor sizes(rated for 3/4 I think). I don't buy the little drills with the hammer function, unless you do a ton of small tapcons, the extra weight and length does more harm than good.
If you need to drill a bunch of holes in concrete - like for blue screws - get a cheap Ryobi corded hammer drill. It far outperforms my Milwaukee combo corded, and you can dedicate the Ryobi to holes and the cordless to screwing.
In the 1/2” drive format, the only brand I would caution to stay away from is Metabo. I bought 1 years ago. Burnt it up the first day. Took it back to HD assuming I’d been unfortunate and got a lemon. The 2nd Metabo promptly burnt up in about the same amount of time. Took the loss and bought a Makita.
You should try Hilti
Keep up the good work!
I've got the Milwaukee smaller drill, the Bosch cordless version of the Bulldog you have (it's actually faster than the corded version) and the big Bosch corded like the big Milwaukee you have. I also have a full-on wet coring drill set up, kind of like a portable drill press. I fear no concrete LOL
All of these drills have their place in my world, for sure.
Cheers!
If there's one thing that I've learned in life and that this video confirms is, you can NEVER have too many tools.
Unless you are moving.
In the higher end brands, they’re all the same now, i’m a retired electrician. But still have my company. But I do find I like the Milwaukee bits the best currently for Sdc. Hilti finally has healthy competition.
I have gotten very good service life out of German made Bosch SDS bits.
I have both the Rigid hammer drill and the Bosch Bulldog.
Some told me a tip, do not push or lean drill, just let it go down with own weight. Then hammer work more better.
You have to push on a rotohammer thats how it works
Yes. No need to lean on the rotohammer. It will be quicker with less pressure. It works FOR you, so don’t get too involved. 😎
@@nizzurtmontalgizzert6462 if you push with all your own weight and strenght, you dampen hammer shock. Your body absord those shocks.
@@nizzurtmontalgizzert6462yes, on mine, the hammer part won't engage until you push on it. You also start the bit, not pushing so it doesn't jump off of the mark.
@@dannyl2598 Right, you don't need to lean on a rotary hammer, you do need to lean on a hammer drill. Thos are two different tools, and Scott should have discussed the difference. A hammer drill, is a drill whcih has a serrated collar whcih will give the chick a back and forth motion as it turns, and you have to put some pressure to engage the teeth of the serrated collar. A rotary hammer works on a completely different principal, and many don't even need for the chuck to turn to get the hammering action.
Pushing too hard on the hammer drills doesn’t make them cut faster, there’s a really good video on TH-cam where they put different amounts of weight on the same hammer drill
I have used Hilti rotor hammers and bits for decades. My TE-30 has lasted my professional career thus far. We have drag raced rotor hammers on the job before, Hilti always out drills any other brand. Hands down.
@@N.A.J. My 30 year old TE24 just keeps going - It still drills fast!
Thank you for 70 subscribe channel🎉🎉🎉🎉🎉
Hey Scott, what’s with all these random holes in floor? 😄
Have the Bosch 1" cordless Bulldog (plus) and the Bosch 1 9/16" Hitman (Max) (both cordless) and both have been outstanding.
People we live in a time where the mid size will do the work of that massive roto drill in a quarter of the time. Go check out the Milwaukee 2915 and be amazed.
Which is better spline drive or SDS
I too buy quality at a significant increase in cost and never have to buy again. I also am very reluctant to loan my power tools. They have a difficult time finding their way home and few take care of their tools like I do. Thanks.
Your definitely right about that ol boy
Yea u rite wit that yong boi
There’s a place for cordless, but nothing beats corded hammer drills in my humble opinion.
There's a place for a Ford automobile, but nothing beats a trusty old horse and buggy to get you from A to B.
@@jimserhant7741I think the cordless are very good these days but if your tool usage is low then you have to balance tool life against battery obsolescence and convenience. My Hilti is corded and my DeWalt is cordless. For smaller drill sizes (tapcons) I pick up the DeWalt.
Bosch has always had the handle on hammer drills and demo tools for decades before anyone else. They have also kept up with the feature needed to stay even with the rest when they caught up.
All those giant roto-hammers are useless when you are drilling holes for rebar in a 2 foot wide slab repair after moving a shower drain. I used two Dewalt cordless drills and switched between them after each hole to let the motors cool down a bit. worked fine.
I owned a Milwaukee just like that one. I used it very little compared to a contractor. I bought it brand new and paid new money for it. It has an electric circuit board in it that failed when the drill was still fairly new looking. Milwaukee no longer has that part and no one can fix the board because it is potted in epoxy and used proprietary IC chips that are not attainable. It failed 3 minutes into a job, I had to go rent a hammer drill. I got a Hitachi and it was a real machine with no electrics. I was so impressed that I bought the same Hitachi and I expect it will last as long as I do.
Computers are a major failure point in everything and really aren't needed in most things they are in.
look at the Hilti brand and have a look at the Hatton garden bank vault robbery one of the robbers got through the hole made by a hole drill love the channel keep em cpming
Try a CP air hammer drill. Drills everything in seconds
Drill Baby Drill !!!
The good old blue tape trick.
No Hilti.......tisk tisk.😅!🇺🇸
Hilti is like bringing a gun to a knife fight 😂
Why you drilling holes all willy nilly in your nice shop slab?
What'cha going to do with all those holes in your slab...
👍
As luck would have it. I have all three
So let me guess. You got some free drill bits for this video?
Doesn't the video just boil down "use a drill appropriately sized for the job", regardless of brand?
But wear ear protection when drilling concrete, please! 😭
In other words.... buy once, cry one?
I have used several big hammer drills drilling for 3/4 inch anchor bolts for auto lifts. Just wondering what you would use when you hit a piece of rebar that is inside of the concrete ?
Giver hell she’ll go!
@@edwardutter6975 There are specific masonry drill bits that cut through rebar. Try Hilti or Relton - Relton have been on the market for years but I think Hilti also have a line.
They have bits designed for this, but make sure you are not on a post-tension slab or you could be in a world of trouble.