An excellent tip, I have done much the same thing myself with a home-made device. I see a few negative comments which are totally uncalled-for, Joe is kind enough to share some good workshop tips, if you don't have a use personally there are plenty who do, don't knock it.

@markhansford178

2 жыл бұрын

I realise that this is an old post but have to say that I completely agree, Joe is a teaching legend! He has a real knack of keeping it interesting and at the same time getting really useful information across. Big thumbs up for the guy 👍

@DieselDog358

4 ай бұрын

Hear! Hear!👍

Thanks very much. I've been in engineering for 50 years and have never seen this trick, not done that much small drilling but enough to know I appreciate your video!

As someone else mentioned "There are small chucks that can be bought ready made with a sliding shank and a knurled grip to hold onto so you have feel.". I have one and that certainly has been a life saver - that type does do good in the mill due to its contstruction. Your approach is essentially very similar and a great solution for sure - it is essential to have that 'feel'. I'm sure a good many folks will find that super useful.

With small drills like that, I usually buy 3: One to lose on the floor, the second to break, and the third to do the job. I now feel confident enough to buy only two, and hopefully not drop either!

I ordered 10 x 0.3mm microbits! After breaking 6 of them I came across this video and built the adapter. I now have two 0.3 mm holes in my project. Thank you for making this video! Greetings from the Netherlands

@joepie221

2 жыл бұрын

Glad I could help! Did you break any after making the adapter?

@geordykorte

2 жыл бұрын

@@joepie221 None what so ever!

@DancingMachine1

2 жыл бұрын

@@geordykorte Wow. Even with that adapter 0.3mm is pretty impressive.

Thanks Joe.I'm an old guy (72) but still learning,.It never stops until your sucking dirt.,thanks to people like you and the magic of the internet

@joepie221

6 жыл бұрын

My Father used to say, "A day you don't learn something is a wasted day". The man read and studied right to the end. He was amazing in his quest for education.

My Dad used exactly that method for scratch building small scale model compressed air-driven engines, for longer than I can remember. I never saw him break a drill bit in over 50 years. Thanks for highlighting it.

Thank You Joe ! I really do appreciate all the videos you do . I am hobby machinist , I’ve been a Heavy Equipment mechanic for over 40 years I work for Caterpillar Warrencat . I learn something new everyday . Thanks again for sharing your knowledge and wisdom . Looking forward to learning more from your videos. Sincerely, Steve W Black - Anadarko., Oklahoma

I thought of this, two seconds after I saw that adapter ... near 80 years old and still learning ... thanks!

@BensWorkshop

2 жыл бұрын

All of Joe's tips are obvious once you've seen them. Before? Not so much.

You've helped me meet my goal of learning something new every day. Thanks Peter Walker

@joepie221

6 жыл бұрын

Thank you for telling me that. Stay tuned.

Thanks Joe. I trained as a machinist yet have never been shown this. You’re up there with the best mate and I appreciate your time. Cheers mate.

You're a life saver Joe. I need to drill some 1.2mm holes in 304 stainless and I've been dreading it until I saw this video. Though I'll be doing it on a mill, your comments below to use a micro drill adapter have shown me the way. Thanks!

Thank you Thank you Thank you Joe. I make small brass parts with small holes drilled deep. No matter how light my touch is on the tailstock crank, the "feel" is zero. From your great vidoe I can see how much quicker and easier it will be with the free sliding chuck. Indeed a "light bulb" moment for this amateur!

Joe, simple yet brilliant. Thank you sir.

GREAT video, been an "old school" machinist for 50+ years and just learned something new......gonna make that adapter today, love it. Thanks

Thank you, from the UK. So many micro drills I've broken over the years, and had no idea about this setup!

On the subject of Tiny Drills, if your bit is too small for the chuck to clamp down on, spiral wrap the drill shank with fine copper wire then put it in the chuck and snug it down tight. Works in a pinch.👍🏻

@joepie221

6 жыл бұрын

I like that idea. Thanks.

Awesome, I always have that problem of breaking the tiny brill. Thank you.

Hey this is something I needed yesterday! I was putting an oil pass on a rifle! I am an gunsmith hobby wise!! Both of my grandfathers were machinist and I learned a lot from my dads father I didn’t get to meet the other!! This is a valuable trade and I have loved it for 40 years!!! Thanks

Fantastic Joe! I only started fiddling with a mini lathe since I retired and I thank you for posting so many tips, they have helped me learn so much! Keep them coming. With thanks from South Africa.

I'm a turner,miller but before that worked as an engineers storeman. While I was there I perused a tap and die catologue and saw that as regular stock they could supply a 4 thousandths of an inch (one tenth of a millimetre) tap with 318 teeth per inch. I would have crapped myself if I was told to use one. It's another world.

Joe I made the tool to drill .040 holes in 2 orifice I made of brass. It worked great. 👍🏻. Thanks!

@joepie221

3 жыл бұрын

Nice work!

Reminds me of the japanese "more than a human" show, where an old turnwright drilled a 0.35 mm hole on a normal lathe through a 0.5 mm diameter pencil lead, which was about 50 mm in length. All he said "it is about the feel". My hats off to that guy.

@Desi-qw9fc

6 жыл бұрын

Jaakko Fagerlund check out the Japanese series “Extreme Skill!”, you can find episodes on KZread. They have a lot of great episodes, including things like making a 3 mm rope they must be capable of lifting a truck, or machining a top that can spin for as long as possible on a 1 cm pedestal.

so simple, yet brilliant!

Genious method! Thanks

One of my old bosses had a sign in the shop that said "If you don't know what lever A is then leaver B". I learned "the feel" from that guy after he stood behind and watched me try to burn a 3/8" drill bit through a stainless plate at high speed and I do mean Glowing Red with all the force I had in me at the time. Talk about work hardening Hahaaa!! Thankfully, "finesse" as he called it or "the feel" as you say is a skill I was capable of acquiring with a little bit of proper coaching. Cool trick man. Rock on Joe, with your 2017 post I somehow missed? Wtf

Thank you for taking the time to make these videos. I've watched every one of them. Awesome channel. Thanks

Thank you very much Joe, bloody life saver, I’m sick of breaking small drills and more sick having to go to the shops and spend the money to keep replacing them, thanks again mate 👌🏼

That is genius ! But now damn it, its 10:30 at night and I have to go to the shop to make this and play with it !!

Joe; talking about "feel" on a larger scale, I read an acticle about building the Alcan highway to Alaska. They interviewed this old bulldozer operator who was operating on a very steep slope. When asked how he knew when he thought his Cat was about to tip over he replied "You got to feel it in your ass". The human body is an amazing thing when it comes to our senses.

@joepie221

6 жыл бұрын

I would not want to try to replicate the perfection of the human body mechanically. Just think about how much is going on when a pencil rolls off your desk and you catch it before it hits the floor. Good luck with that. On a different note, I had the opportunity to scuba dive inside a ship wreck that was just slightly listing to the left on the bottom. As I swam down the hallway, my eyes wanted to swim parallel to the floor because it looked natural, but my equilibrium told me to swim level to the bottom of the ocean. It was a strange sensation to come to a comfortable position and not get sick from the conflict. Thanks for your comment.

Yes, much better feel by hand. I made a similar slip fit system for hand tapping anything smaller than 10/32 threads. When using your fingers you can really feel that tap binding up and starting to flex. That's when you back out, blow it out, re- oil and go back in for another "peck". Works equally as well on a mill. Good stuff Joe.

this is awesome. my wire drilling has all been hand work for 20 years. I will not forget this sweet tip. thanks

...."...all I got"...this is excellent!!!

Joe, great trick. If you clamp a small V-block on the OD of that female mandrel, you can magnet mount a dial indicator depth.

@bobgarr6246

4 жыл бұрын

Aaah grasshopper, this is not a trick, but rather critical thinking and the ability to think outside the box and find simple solutions to complex problems. It comes easy to some, in a MacGyver kind of way, and others can't see the forest for the trees. Bravo to those of us that can size up and quickly find solutions to confounding problems that stump others. Necessity IS the mother of invention !!!

Another great video. I just completed a wing rack gear out of .375 square X 7" long aluminum. Cross milling with .061 end mill @ .160 intervals, .100 deep over the 7" length. I didn't have the 'feel' and broke three .061 end mills during the process. That FEEL doesn't come cheap. I will be making one of these for my lathe. Thank you.

Thank you Joe for the help, it was a bit of a struggle but got to drill the hole. Needed new drill bits was the key.

Cool, never seen that before

Not in a million years would I have thought of that!

Love your videos Joe. I tell all the new guys I work with in the directional drilling business you can't teach experience. You showing us all techniques and the why make your videos priceless. Thank you for all you do (even with the Hookem Horns) from an Okie.

Awesome I'm making one this weekend thanks for the tip!!!

I always buy cobalt micro drill bits. They work good in a pin vice also

How clever is that? - Brilliant trick. Thank you for sharing...

@joepie221

6 жыл бұрын

You'll like it once you try it. Great tool feedback.

Very good Idea. I am a hobby machinist. When I was taught lathe work many years ago the instructor emphasised "develop a feel for the procedures you use". I will be using the method you have shown. Thankyou Joe

@muskokamike127

6 жыл бұрын

I've heard that since I was in shop in highschool in the 70's, I don't do much metal work these days, mostly wood, but the "feel" is bang on. You know when something's wrong....specially when using a circular saw through maple plywood with a dull blade....

That is a slick way of drilling micro holes. Thank you Joe. This old timer appreciates you sharing.

Brilliant!!

Oh MAN!....you did it again,...I had to stop what I was doing to write this...Sorry for repeating my self mate, but to the likes of me (and I am sure many thousands of others...) this type of generous guidance is so amazingly selfless, and I for one am so grateful for these gems.....I am frustrated that I can't give anything comparable back...Agggh!....Nice one Joe!!!...:-). please keep up this great content; you are some guy:-)

@joepie221

6 жыл бұрын

Thank you Sir.

@torkeymada

6 жыл бұрын

Really excellent technique. I have broken many small bits, doing it the wrong way, as you explained. Thanks again

Nice trick. I drilled .3 mm holes year ago almost the same way but I had even smaller chuck. Feel is everything. Thanks for sharing

I made one like that some time ago. I bought one those $150 jobbies, but it had too much runout. I took the chuck off and made a sliding adapter like yours. Works great.

You're absolutely right about the 'feel' of the drilling/cutting. Once you've lost the feel, you've lost your drill bit!

Stick a small digital caliper along the adapter and have a accurate depth gauge.

I made my own by chucking a piece of brass in the tailstock and drilling and reaming to match the straight shank chuck with the drill and reamer in the headstock. It has been in my toolbox for 55 years.

Bloody brilliant! Thanks for the tip.

Nice trick. I work with stainless every day. Sure does test my patience

@joepie221

4 жыл бұрын

Yes it does!

Thanks Joe, For an excellent suggestion. Would it also help to put the bit further into the chuck and then gradually draw it out as you progress with the drilling

@joepie221

3 жыл бұрын

Absolutely

Awesome joe pie, such simple things can mean hours of saved time AND-a better end result, some guys are just born machinists, thanks for the tip!!

Very cool! Great tip Joe. Thanks for pointing out the air bleed hole in the adapter.

Super method. Wow, that is a great solution; much appreciate your sharing it. Thank you. Just curious; what's the tolerance between the drill chuck shank and the cylinder holding it? Thanks

@joepie221

3 жыл бұрын

About .0005". Close enough that the air hole in the arbor is a must or it won't go in.

Sherline has a “sensitive drilling attachment for doing this with THEIR MINIATURE HOBBYIST MILLING MACHINE. (The drill spins, but you feed manually in a similar manner). I think the Sherline unit cost around a hundred bucks....

An idea so simple it's perfect! Thanks for sharing.

Brother, I watched this 4 times because I love the ingenuity. Awesome.

New here, the micro drill title caught our attention because well we are micro machinists so your 26 thousands just under 6.5 mm for us as watchmakers we do millimeter more often. I hope my micro drill press does not begin to stall out here at 6.5 mm as that is really large for us. Just funin, you are good.

@joepie221

5 жыл бұрын

To correct you, 26 thousands is not just under 6.5mm. Its about 3/4 of 1mm. .026, not .260

@ActiveAtom

5 жыл бұрын

@@joepie221 Thank you that is what I get for trying to convert inches to my mm's, thank you for correcting me.

@lifuranph.d.9440

5 жыл бұрын

@@ActiveAtom You aren't the first...nor the last.

@robertlawson8572

5 жыл бұрын

But it is, to all intents and purposes, 0.65mm, so he got his decimal point out by one place. I'm sure that would have become obvious if he ever had to perform the task in reality... At one shop I worked at, a guy converted a dimension wrongly, from metric to the inches he was so much more familiar with, and we ended up with a roomful of aircraft spec light alloy billets, all 5mm, or a little over 3/16" too short for the task... @@joepie221

That is clever, I don’t have a lathe for metal. but still interesting.

I have a similar tool made by Rutland that utilizes a Jacobs #0 chuck that closes to 0 on a spring-loaded shaft. I'm in the carburetor business and use it frequently on my miniature Sherline lathe which is smaller than your tailstock. Thank you for your video

Great video, Joe! Thanks for sharing your knowledge with us

So, if you can't afford a lathe you can't drill tiny holes, is that it? Brilliant idea though. Thanks for sharing.

Genius! I do work on musical instruments and use these sizes all the time. Do you have any tips regarding small drills straight into the sides of curved steel? Usually working with steel cylinders OD .085, drilling holes at right angles with a .020-.035 drill and reaming after. I would love to hear your thoughts on reducing walk, getting perfectly centered holes, and getting precise distance measurements between holes.

@joepie221

4 жыл бұрын

If possible, make a hollow guide that your tube fits into. This guide should have the hole through it the size of your tube, and a cross hole just like you want in your part. The main hole keeps the tube located, and the cross hole "guide hole" keeps the small drill from walking when it hits the actual part.

@jamescapatch4783

4 жыл бұрын

Joe Pieczynski thanks so much! That is the best method that has ever been suggested to me. We all have basic machining skills, but the practical problem solving stuff can sometimes be elusive. Love your vids, the threading techniques are ace.

You're the best. Cut to the chase and explain it out in a way another mechanic can understand. Best to you and your's for the Holiday Season.

@joepie221

6 жыл бұрын

Thank you. Have a great Holiday season as well.

I see someone else calls that a sensitive chuck. Had mine given to me by an old machinist who retired and passed many great tools to me. That sensitive chuck adapter saved my goose many times over. I never realized till now how expensive that thing is. A treasured tool because a craftsman gave it to me who I highly respected. I bet those who build your design will have no less a tressured tool. Nothing is more frustrating than fighting and breaking tiny drill bits, unless it's a tiny dull center drill, lol... Another great tip Joe and your right feel is everything for doing good work.

being a swiss apprentice micromecanician i can understand why you would have some difficulties with drilling that small of a hole with such a lathe so good job but if you take the good machine for the good job you'd have no problem drilling this hole, for example the smallest hole i ever drilled with a lathe was 0.2mm on a schaublin 70 lathe the hole ended up being 0.215mm in diameter but i was in my tolerance so the job was done

@Boabreath

5 жыл бұрын

Agreed, 1350 RPM is way too slow for the drill bit he's using - but that's probably about as fast as that lathe will spin. At a speed of 50 sfm (recommended for stainless), a .026" drill should be turning around 7500 RPM!

@joepie221

5 жыл бұрын

It sounds to me like you are a CNC lathe guy. If the feed isn't perfectly inline with the RPM, this drill wouldn't last a minute at that speed. Obviously my RPM was fine for the process because it works perfectly. Every time.

@joepie221

5 жыл бұрын

I also see you are a ST subscriber. Ask DB to do this at 7500 rpm by hand and get back to me.

@vikramkumar1833

5 жыл бұрын

Bryan rou I have to drill 0.32mm diameter drill. Depth is 12mm.Material is EN31 fully annealed . Can you suggest better way than hand drilling? Vikram mefavkd@hotmail.com

Mmm, What about drilling a .5mm hole 3" long on brass rod..What type of bit would you use?

@joepie221

4 жыл бұрын

I'd use several and start from both sides. Finish with a reamer if possible.

Always look forward to these videos. GREAT TIP! Thank you.Fred

I have one of the commercial ones but I like your's as well. Mine is keyed for use on a mill with a free spinning collar to push on. Your design is better on the lathe because you also get feedback on how much bite the bit has. I've snapped several bits on mine. Looks like I'll be making a new tool. Thanks for sharing.

I didn't remember watching . My only complaint is I can't leave a 2nd LIKE ;)

@joepie221

3 жыл бұрын

I appreciate that.

This video is 10 times longer than it needs to be.

@leyburnhealeyman

4 жыл бұрын

Maybe not, some people still don't get it!

I have used this method quite a few times in my day. Great video.

All ways something new on your channel keep them coming Joe.

Great video. Can you tell me what material the drill was made of, seemed to have no problem cutting

@joepie221

5 жыл бұрын

Most of my small drill are Cobalt.

I'm a Watchmaker. That drill bit is fairly large to me.

@mainarbor8416

5 жыл бұрын

www.testntools.co.nz/desic-tungsten-micro-drill-bits-0.3mm-3.1mm-5-pack.html

@MatthewHolevinski

5 жыл бұрын

I know what you mean, my grandpa the clockmaker, and nationwide clock repairman for montgomery wards did all his practically microscopic hole drilling by hand.

@mainarbor8416

5 жыл бұрын

@@MatthewHolevinski that is still a standard method. My grandfather and father had contracts with the Railroad until they went to Satalite. I'd like to add we use an abrasive piece of Corundum to shape, harden, and polish high carbon steel 0.002mm/min material displacement on average sized conical pivots for the balance staff on modern Watches creating super hardened mirrored surfaces. The larger size balance pivots on an 18 size Elgin pocket watch are typically between 0.11mm and .014mm. In Jeweled mechanisms (7j-21j) those pivots also glide on a Corundum surface that is also drilled. Corundum is the same composition as Ruby and Sapphire with a hardness of 9 on the Mohs scale. Gypsum is a 1 and Diamond is a 10. Ps. It is rare but Diamond jewels have also been used. Naturally Diamond is also the abrasive used in such drilling applications. The drill bit looks like a hair with a double heli and the diamond "slurry" is a fine powder added with oil. I typically only need a 20%mm dia 3.8mm long Tungsten Carbide HHS bit for small brass pivot holes www.mikrontool.com/en/Products/CrazyDrill-Flex/Description I also drill by hand using a "Steaking Tool" to stay perpendicular to the plates.

Looks like a great tool and technique. The idea of rotating the work while holding the drill bit still is great. It solves much of the complication of making a sensitive drilling attachment. Of course it does limit you to drilling holes on parts that can be held in the lathe chuck. I followed a link to this video from a question on the PM board about using a 0.004" drill bit. I have used a 1/64" bit (0.0156") in my Unimat lathe and in the drill press configuration of that machine with NO problems. So 0.026" does not worry me in the least unless it is a cheap, poorly made bit. I have even used a pin vise for drilling 1/32" holes (0.0312") holes in softer materials by hand with no problems. The pin vise allows me to rotate the drill bit using my thumb and forefinger, without moving my hand. That eliminates the movement that other hand held methods will allow and which causes the drill bits to break. The 1/32" and 1/64" bits in my shop are both around 40+ years old and have at least a dozen holes behind each of them. I haven't broken them yet. Now that 0.004" bit does make me pause a bit but I will make a note to get one and try that using this technique some time soon. As an additional note, I would not try this with my SB-9 even though it has very little runout. The Unimat can run at 7,500 and perhaps even 10,000 RPM while the SB is limited to about 3,000.

Thank you Joe and have a Happy Thanksgiving to you and your loved ones. Worth.

This reminds me of the old joke about a drilling competition between the USA and Soviet Russia back before laser drilling was a thing: It goes that the USA sent a drill bit, measure in microns, to their Russian counterparts that was "the smallest possible dill bit in the World". Days later the Russians returned it with a hole drilled through the centre of it along with the bit used still a sliding fit in the hole!

@markmall7142

4 жыл бұрын

A story exists that Germany did that with Japan .

i drill very small holes in tool steel alot at my job and I just rest my finger on the drill so i can feel it cutting and if it bows at all , say today 12 hole bolt circle thru a2 with a 1/16 drill thru 1.500 of material 12 times 1 drill no breaks ,I have been a tool maker for 40 years and my supervisor who is not a tool maker today tells me not to let him see me doing this again it is a safety hazzard I have been doing this over 30 plus yrs. Broke alot of drills before I found what works and it works for me never an injury .I keep my rpms at between 700 800 and it cuts like butter everyone else is breaking drills running way high rpms and ,like you said no feel..I got angry being told how to do my job by someone that doesn,t know my Job, and this man thinks it,s ok for a toolmaker to try to drill thru steel at 900 rpm,s with a 5/8 drill it was screaming I backed way off waiting for it to grab and shatter the drill sending fragments like bullets thru the air ,,,,wow I was told people have different ways of doing things ,hello yes sir right and wrong. thanks for letting me vent and I hope you answer to this as you said the drill is so small my finger is like leather after 40 yrs. doing this ,would I rest it on a 1/4 drill at 600 700 rpms hell know it would tear my skin off ,,,please reply Sir.

@joepie221

5 жыл бұрын

Machining is an art and the appreciation of feedback. Sound, color, smell machine tone changes...everything is a message for those willing to listen. It a shame when a company hires a degree to run a shop where hands are the best tools. Ask your genius boss to demonstrate his preferred technique next time he opens his mouth. Problem solved.

When I was in the Air Force in the early 80's my shop chief taught me how to do this. Great to see it's making the rounds again!

@joepie221

5 жыл бұрын

Maybe I taught him how to do it. ya never know.

Great tip! Thanks Joe.

You can do this with a mill. You need a sensitive drill attachment. It's roughly the same setup, but the drill is spinning and you grab the chuck by a ring that spins on bearings.www.msdiscounttool.com/catalog/product_info.php?csv=gg&products_id=105401&gclid=Cj0KCQjww7HsBRDkARIsAARsIT4gMT3c3RQA5VMN7I1kuGrmW6OWlKt2JMeE8GzT1CvNAgU5r--PNXwaAlbvEALw_wcB

@reltub20001

4 жыл бұрын

Bob Darli. The only thing I found wrong with the posred website for the attachment is that only in the state of California, the product has material that may cause cancer. All of the other 49 states and the rest of the world can use this product without worry. What can the Californians use?? 😃😃😃

Broke 3 tiny bits before looking. Bring on the names - just want to make TINY holes in 1/4” vintage OAK... Uh oh. Did he say lathe. WELL *P00P* !! I’m talkin hand drill and Wood, so I can put in fine brass nail. darn it.

@Uniquettt

3 жыл бұрын

I use a Amtech R0279 Mini Craft Hand Drill but it doesn't always get positive revues but I have had and used mine for more than ten years. I brake the odd bit still now and then but light pressure and less speed gets the job done and fewer broke A normal hand drill is heavy pushing down on the small bit but the Amtech is plastic with a brass chuck and he did say lathe but I found my self hear by accident too. To make fine holes in wood you could try using a pin push Expo 2mm Pin pusher - ideal for Amati and Peco pins # 75110

@CountDoucheula

3 жыл бұрын

Have you tried an Archimedes drill? Gives you much greater control over twist speed & pressure for small jobs. www.ebay.co.uk/itm/QUALITY-ARCHIMEDES-PUMP-ACTION-PIN-DRILL-Precision-Model-Pinning-Hand-Tool-/172537853411?_trksid=p2349624.m46890.l49292

@davidgrover5996

3 жыл бұрын

I have put a drill bit in a pin vice and drilled it by hand. It takes forever but it might work for you.

Joe, I am a real novice, but it looks to me that you really know what you are doing. thanks and regards Colin. UK.

Love your videos! Thanks for doing what you do!!

"feel"=trigger time...nothing replaces time in the seat

@joepie221

3 жыл бұрын

Thats a fact.

So, the secret to not break your little drill bits is to buy a lathe...

I've just discovered Joe Pie-----have watched several of his video's---each one has been a revelation. This guy is a grand master of machining knowledge and technique. Thanks Joe for sharing. You are a national treasure for machinists wanna be like myself. Keep em coming.!

@joepie221

5 жыл бұрын

Thank you very much.

Great info. I find your videos very helpful, thanks for posting all of your videos.

Too bad we don't all have lathes !

I guarantee that twist bit didnt come from harbor freight

@joepie221

3 жыл бұрын

You would be correct.

@xmachine7003

2 жыл бұрын

No😂😂

@xmachine7003

2 жыл бұрын

@@joepie221 what maker of drills do you use?

Great idea. I have an application for this at the present time. It will save me purchasing many 1/16 ths drills.

WoW! Such a simple idea but oh so very useful!!

A bigger problem is if your tailstock center is not online with the headstock axis, a drill will break off. Our secondary operation lathe has no adjustments for setting the height and position of the tail stock. I had to drill a bunch of .007' holes To me, .026 is HUGE.

@machinist7230

5 жыл бұрын

I've seen this trick before, but never held in a drill chuck. What seems to work well is to but y a Morse taper blank, putting it in the tailstock, marking orientation of the blank, and then drilling and reaming a hole in using tools held in the work holding chuck. It eliminates any off centeredness of the tailstock, both laterally and vertically.

@ageanageanic280

5 жыл бұрын

what sort of bit did you use to drill 0.007 holes?

Excellent tip! I wonder if mosquitoes find this pornographic? ;-)

ive seen this before thanks for sharing.i have a friend who is a toolmaker and works with zero tolerance the machinery he has in his tool shop are self modified to work with very close accuracy,to give you a idea the items he works on are in a heatbox of 40 degrees celcius he takes them out and works on them for a few moments at a time and puts them back in and when he gauges them up he holds them with tools that are from the heatbox (Gauges too), other toolmakers that work in other areas that maker other fittings work under the same conditions so all the parts fit together

Awesome Joe. Thank You!