How to sharpen taps and counter sinks
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- เผยแพร่เมื่อ 23 มี.ค. 2024
- In this video we are demonstrating the use of our two way cam relieving fixture when mounted onto our universal tool and cutter grinder. @Lappemountainliving
- วิทยาศาสตร์และเทคโนโลยี
Good stuff. I like the comment "buy cheap hammers not cheap dial indicators.".
Awesome video mate! Cheers from your mates down under 😎👌
Thanks for the visit! You guys rock!
Even though the tools, work, and fixtures are dramatically smaller, I still get similar vibes to Kurtis and Karen of Cutting Edge Engineering Australia. And I like it.
Subscribed. ✌🏾
Thanks for the comment. Extremely flattering! So glad you're enjoying
I bet this is a dying art as skilled worker costs increase and mass produced tools continue to fall in price. I wonder if hobby machinists will start to take up the mantle of hobby tool making and sharpening as well. As a hobbyist metalworker who is learning the craft from YT, I appreciate the sharing of this esoteric knowledge into the collective pool of "how to make stuff" wisdom, and it is also a great place for collecting more wisdom (and sadly vitriol) from comments. Well done, and I am glad I found your channel.
Thank you for your very thoughtful and flattering comment. We'll be making more videos on tool and cutter grinding and machining so please stay tuned!
Great video, I think all milling turning work is cool in general however the tool + cutter grinder is so so satisfying to watch what a machine!
Thanks for your comment. We'll be doing more T&C grinding in the future
Two k.o. lee units. Nicely played old man. We have #5 Cincinnati, a Brown & Sharpe cylindrical, a couple k.o's, one is a surface... good stuff!!
Thanks for watching! Cheers!
That is an amazing fixture! I have seen a few tap grinding fixtures but nothing like that, thanks!
Glad you enjoyed. Thanks for watching!
im a welder fabricator i always wanted to see a countersink sharpened thanks
Glad you enjoyed. Thanks for watching
I managed to score one of those Hybco fixtures for a song a while ago but haven't managed to find any documentation nor videos on how to use it. It's not obvious due to the many variables so very thankful for your contribution here!
Thanks for the comment! I've had this fixture for 30 years. If you want to see more let me know,,,
You managed to do some very to the point explanation I must say, you should be teaching these skills! Is there any way to tell what cams are dedicated for different cutters? I got four different ones, two two-flute marked "S19" with different profiles, one marked just "3" and one "4" which are 3 respective 4 flute ones. I also got four blanks which led me to wonder if you could actually grind your own cams? @@Lappemountainliving
That will not sharpen the tap, it will just increase the relief. The cutting edge of a tap is the face inside the flute that is presented to the work and can be sharpened with a slipstone or by grinding the flute longitudinally. Increasing the relief actually reduces the amount the tap can be sharpened before it goes undersize.
The operation presents a new portion of the tap face to be used. It does sharpen the old one. So it is sharpening it… Just not traditionally as you would imagine
I agree. At 10:01, the closeup shows that the cutting edge of each tapered (flattened) crest has not been touched by the grinding wheel, so the tap has not been sharpened at all. The outside diameter of the tap has been reduced, which serves no purpose.
I was always taught to flute grind taps to sharpen them not back them off .
True. Your just making more work for the teeth further down tap. I've used a die grinder with a small fine stone wheel in the flutes to "touch up " taps before.
Wrong. The relief cutting also sharpens the tap without affecting it's cutting diameter. The only way to reduce the tap cutting diameter, would be to grind along the threads with a 60 degree stone.
Finally, a good video on relief grinder set! Thank you!. I have a SENECA FALLS machine that I'm trying to figure out how to use. It's very similar to the HYBCO. Another video on setup of tools and some explanation on when to use RADIAL and/or AXIAL would be wonderful!. Thank you again!
Glad I could help! Thanks for watching. More to come!
That work environment will keep you young.
A tool & die shop I worked for years ago had their own separate in-house tool sharpening dept and several different grinders and a whole lot of attachments for each. We custom ground and sharpened end mills, round milling cutters, drills, c'sinks, and anything else that cut chips.
learned a lot... thanks for posting, sir
Happy I could help. Thanks for watching!
Well I never knew how those things got cut and made to have those cutting angles.. Thanks for the demonstration.
Thanks for the comment! Thanks for watching
Spent lots of time as an apprentice putting sharp on end mills slot drills and the like.
Very good work and a fine explanation. But beware of the grinding dust. Dust from high-grade tools will cause cancer !
Good advise! I'll do a video on the industrial spark and dust collector that I use with all my grinding projects
That Hybco is super rare. An ingenious device.
Agreed. Thanks for watching!
Very interesting. Thanks
Very welcome
Hello Mr and Mrs Tool Grinders:
wonderful video, I am a wanna be tool grinder.....
I jury rig an x-y table and a rotary table with 5C collet blocks....
and then try and 'tune-up' tools with a grinding wheel
that has been trued up with a diamond.....
the wheel is attached to a DeWalt 10" radial arm saw from 1960...don't laugh...
I do have a Black Diamond 85 drill bit grinder [collets from 1/16 to 3/4 inch
and Letter collets and Number collets from 60 to 1 ][a bunch of collets to say the least]
one day when I win the lottery, I am getting a real tool grinder......
I really appreciate you video.....about the only way I can do those 3 flute countersinks
is to use a cut off abrasive disc and grind the flat.....not very professional to say the least....
I love the single Weldon countersinks, and if needed I take a small stone on a 1/4 inch
shank and use a die grinder, again, I am only doing for myself.....
recently, I bought a CBN wheel [inbeded on aluminum 1/4" plate] wow, I do not need
coolant on the Black Diamond drill bit sharpener, very few sparks and little dust....
and the bit maybe gains 5-10 degree f in heat.....I wish I had bought 20 years ago....
I noticed all your diamond wheels on the wall, I am jealous.....
Best Wishes from Orlando, Florida, Paul
Thanks for the great comment! Keep at it and remember any tool can be the right tool!
@@Lappemountainliving cheers, I really enjoy your channel, Paul
Ah thousandth of an inch DTI....My values 🇬🇧
Great video! I had to deal with all the European counter sinks and it difficult to get people to understand the difference. We ran 90 % European metric parts and some guys seem to never get use to it.
Thanks for your comment. I've done zero work with European stuff. Don't know anything about it.
Great stuff! I've passed up on quite a few taps at auction because they were a bit too far gone, imo. It would have been nice to be have a machine like that to bring them back to life! I guess the real question is..... how do you sharpen the matching dies? 😃
I can sharpen dies in the same fixture, just have to change wheel arbors and grind with a mounted point. Thanks for watching!
That is a nice grinder, will you be doing any jobs on the ko lee that was behind you
Yes sir. Stay tuned and thanks for watching
Very fascinating. I always wondered how they sharpened and resharpened tool cutters and taps. Did you learn this as a trade or just on your own?
I'm a machinist by trade and noticed that machine shops all had tons of dull cutting tools piled up so in 1994 we opened up a tool and cutter grinding business. We taught ourselves the trade and although we have since closed the business down I still have all of my equipment at home.
@@Lappemountainliving hang on to the equipment......you never know when you may be back in business....best wishes from Orlando, Florida, Paul....great video by the way, new subscriber too...
Nice to see, but not many have a grinder like that..
No, but there are drill grinders, like the Brierley (if I remember correctly) which can do this. IF! you have the correct cam available to you... I once travelled 200 miles to buy a Brierley ZB32 the owner said was good... The cost of replacing missing accessories was uneconomic. It's the same with T&C grinders... Cincinatti quoted me £400 for centres, missing from a Tool and Cutter grinder... The grinder was only £200... Major parts missing indicates no one gave a shit!
Just found you, subbed.
I have a STRAUSAK 57W universal grinder and a D bit grinder to play with amongst other toys.
Any T&C vids….
Interesting but not much I own is worth getting professionally serviced. Tends to be either sharpen it myself with what I have or it's cheaper to just replace it.
I could have had new ones delivered from McMaster in half the time it takes to sharpen. Nice setup though!
hybco mentor ohio
A very informative video, yet that clickbaity splash screen kinda puts me off...
I don't know who you think you are fooling you did not sharpen the tap at all.
FIX YOUR AUDIO-OR STOP MAKING VIDEOS
I can hear him just fine, must be something on your end.
Th audio is perfect, prolly your wife has software on your computer to see what you are browsing...
Key question, as involved and complicated a process as this is, (dont get me wrong, that's not meant as a critique, quite the opposite) do you find there's still a market out there, specially with the influx of cheap, throwaway tooling coming in from Asia via the on-line markets of Amazon, temu, Ali-Baba, etc.? It seems like this abundance of cheap crap coming in from overseas would make a service like this obsolete, much like it did to the Aamco brake turning lathe and the trained technicians that were once booked out days in advance that found their skills about as in demand as the 60 year old, two dollars a throw hooker does on the Las Vegas Strip.
We are not at all offended by your comment. In fact you are correct, the abundance of cheap crap has changed the world of tool and cutter grinding. We bought these machines over 30 years ago and opened a T&C grinding business that we ran for 14 years. These machines paid off our house, raised our children and kept serviceable cars in the driveway. We love these machines and so we've kept them up all these years. The next planned use of these machines will be a semi retirement small business. Legitimate machine shops still buy legitimate tooling that is quite expensive and therefore economical to refurbish. We can also create custom tooling that simply isn't available at any cost.
Thanks for the comment
@Lappemountainliving
Were you doing strictly metalworking cutters, or did you do other work too?
Sometimes a shop like that would do everything from general grinding to homeowner walk-ins, to typical metalworking cutters. Others were strictly doing metalworking tools.
- I wouldn't be surprised to see some business come back to guys like you if money gets tighter or trade conflicts make the cheap stuff harder to come by.
Draw tube,