Everything you need to know about drilling and tapping holes | DIY

[@christophersparkman]

This no-frills, no gimmicks, no special effects style of video just earned my subscribe. Thanks Hagerty. Looking forward to more legit content.

[@mth469]

I believe I heard him say "Boom!" at one point. So there was some special effects.

[@ryankim3612]

@@mth469 valid point!

[@troycarpenter3675]

I hate when they have a long intro and a bunch of nonsense no one wants or needs to hear. Just get on with it!

[@howardhughes7427]

​@@troycarpenter3675 what maybe pointless to you someone else may need or want to hear j/s

[@mauchlinem]

and no eye protection

[@victordipersia]

Dude... a lot of people know their stuff and make videos on YT showing what they know but "teaching" through good communication is a skill that very few posses. YOU BELONG IN THE CIRCLE SIR !

[@bassinbillRC5300]

As I was installing a class 3 Hitch on my Kia Sorento I discovered the four threaded holes in the bottom of the frame rail were bunged up from rust. One trip to Ace hardware to buy a n M10 by 1.25 thread pitch tap, a tap handle and cutting oil saved the day. I followed the instructions this gentleman proposed. In between tapping the individual holes I used brake cleaner to clean off all the shavings on the tap before using it for the next hole. The supplied hardware now has attached my hitch to the frame because of this video and my purchases from Ace hardware. Thank you Hagerty for uploading this informative video.

[@dougrobinson8602]

I use a drill press for tapping whenever I can. My tip is if you have a cheap belt-driven press, pull the belt off, and turn the drill press with the belt pulley above the drill chuck. That way, you can back the tap and feel if the tap is taking too much torque to turn. Don't forget to unplug that drill press before you touch the belt or pulleys. Always,always, always wear goggles or a face shield when tapping. When a tap shatters, it will throw tiny and sharp shards of extremely hard metal. Nice video with great explanations of thread dimensions.

[@martysmith6240]

Safety first

[@autka_me]

Just my two cents on the subject, that I've learned the hard way over the years: - T-handle if you can fit it in is best way to drive the tap for two major reasons: it's easier to see if it goes straight and it's harder to break the tap because you don't apply side force like with ratchet. - It's handy to have some kind of small machinist square to check if you starting straight. Especially for thread that will go deep into the element and you don't have/cannot use drill press with spring loaded tap center. - And as much as power-taping seems appealing because it's fast and almost effortless - sometimes it's the fastest way to spend next two days trying to get broken tap out ;)

[@kw2519]

Unless you have an edm in your garage lmao

[@autka_me]

@@kw2519 yeah. Those are awesome btw

[@kw2519]

@@autka_me I ran one for a little bit at one of first machining jobs lol messy

[@dougrobinson8602]

@@kw2519 Damn. You beat me to it! That's the only way to get out a really stuck bottomed tap.

[@kw2519]

@@dougrobinson8602 haha Been doin it for a little bit. A chisel and hammer can save you if you’re really careful and have the time. Really careful.

[@aral2dmax]

Dang , your good at explaining how to tap. True professional, no gimmicks. You went head on with your explanation , no beating around the bush , straight shooter I meant it in a good way. I give you 3 thumbs up. 👍👍👍!!!

[@MrTexasDan]

Great how-to! A couple of tips from an ex-machinist: 1) Like Davin says - chamfer your holes, preferably out to just over the major diameter of the thread. This makes for a clean finished look, and prevents sharp threads above the surface which will pull out. 2) In a drill press, instead of center punching, use a "center drill" to start the hole before drilling. This bit will locate the hole, and provide the chamfer in one operation.

[@davidrandall271]

This is going to sound grumpy, but it seems there just isn't a lot of knowledge here. Let's be clear...you use a spot drill for pre-drilling, not a centre drill. A centre drill is used for putting a centre in for turning between centres on a lathe, it is bad engineering practice to use a centre drill for a drill. Also these dies here are die nuts, only suitable for reclaiming threads as the rake angle is typically negative. Split dies are used for cutting thread.

[@MrTexasDan]

@@davidrandall271 Yes, of course you are correct, it does sound grumpy.

[@madeleinesutherland1623]

Ha! I'm in the lab construction business rather than the car business, and this video was very helpful information! You never know how many ways the content you put on KZbin can be useful.

[@pnmacdonald]

I've never done this before. Of the 6 or 7 videos I watched, yours was the most complete and interesting to watch. Plenty of explanations as to why it was done a particular way as well as what not to do. Great job. The video and audio quality were perfect, as well.

[@LloydGM]

Perfect for amateurs like myself: clear, short but detailed, and to the point. I really appreciate the great advice you worked in, too. Many thanks! PS I especially appreciate talking about threads at the beginning. That helps we who want to learn more than just how-to steps. /cheer

[@theKarlJ]

I was trying to find a simple tap and die tutorial and got an entire college course on threads and thread creation. I hope youtube is paying you well, professor.

[@josephtoala3088]

When they started explaining more of these tools I immediately subscribed! It was extremely easier for me to understand on campus/job when talking about measurements!

[@stevenclarke5606]

Excellent presentation, I haven’t done any metalworking since leaving school a few years ago, and I just wanted to refresh how to tap a hole before actually doing it. Great job many thanks.

[@markbrinton6790]

I'm floored you're drilling into metal without safety glasses. Damn Davin, you're the last person I thought I'd see do that.

[@sheeeple2069]

Thanks for the guide! I just drilled and tapped my first hole and it felt so good when the bolt went in perfectly. 😆

[@4thGloryMonday]

heres a tip for tightening a drill chuck when the bit spins in the chuck, tighten chuck in all three holes then back to the one u started with

[@johnmilner7603]

I always tighten 2 hole and that works for me.

[@allogan8152]

Also, don't bottom the bit into the chuck. Put the chuck grips on the end of the drill bit, 1/4" or so. When they heat-treat the bit in the factory they hold by the end so the metal there is left softer and the grips will grip better.

[@mineoperator]

This video is exactly what I was looking for. It addressed the questions I had. It was straight to the point and showed a variety of ways to complete the task. Thank you for this video.

[@TJDST4]

Absolutely great lesson! Thank you. The only, only, thing that I would add is that PATIENCE is absolutely required!

[@zohaibsarfraz4508]

It was one of the most informative and comprehensive crash courses I have ever seen. Covered everything in a few minutes. Thank you, sir 😊

[@dirkmcghee1604]

A few minutes? That's a Boomer's few minutes if I ever heard one. 🤣

[@Dark_Knight_USA]

Greetings: I knew it. I like 2 C another's version. Well presented. I do not know the tap set brand. However looking at it I figure in the $300 range. Thx 4 the share

[@ickess]

I have done everything in my power to remove a stripped Allen bolt from the engine on my motorcycle. I am anticipating having to drill the head off to remove the component. Then hopefully be able to grab the rest of the bolt with pliers and slowly back it out, but anticipating also deadbolt, possibly snapping and they having to your truly and tap it very helpful.

[@Kake84]

Nice to see even pro can make thread not straight 14:54 but great video. I making threads in drill press just keeping T-handle straight with drill chuck and rotating with hand. Very easy method get straight threads.

[@noisybarinavalon]

Hey Hagerty!!! This! This is exactly the type of information I enjoy learning from this channel. The special effects "dancing valve springs" while may be entertaining to some is not very informative. I much rather prefer Davin's monologue while working vs. timelapse and special effects.

[@aaronarmstrong406]

You... You beautiful man. Thank you. My god. You have saved me so much time, heartache, troubleshooting, cussing, embarrassment, etc. Thank you.

[@78a67h]

Thanks. Your tutorial was better than most I ever received at the University

[@williambutler8624]

Great video, very well explained, did machine work for a few years, had my share of drilling and tapping, and every now and then you gonna break a tap, live and learn is the best experience.

[@maksymriabov1356]

This man looks Texas. An engineer from Texas is a certified W.

[@rogjackson]

Extremely valuable content!! If Davin had a TV show, I'd watch it like clockwork twice. Maybe more. Great video!

[@timrowe234]

Great video brother! I learned a lot from this. Tapped my first hole today and busted it to pieces.. should have watched first. I didn’t oil it and didn’t do back and forth. Learned from my mistake. Thanks

[@dgriffin6074]

Nicely done. I have a rather large set of drill bits which I've owned for YEARS. It has some drill bits labeled by number or letter, not fractional size, and, until now, I had no idea why they were in the set; nor have I used them. Thanks again.

[@KrautSpaceMagic]

i drill and tap holes all day every single day for trucks that cost twice as much as most peoples homes, here are my 2c on this specific video -always pilot drill your holes with a 1/16" or 1/8" drill bit, your holes walk a lot more than you think -try to use a chamfer bit instead of a deburring tool, it creates a more consistent and clean edge -T handles suck to start a thread straight and they always slightly gall the first few threads on the way in or out while trying to align itself -electric drills are actually very good to tap holes with, it has enough height and vision over the drill bit and tap to see how straight you are. and with a nice tighten on the drill chuck the tap will often spin in place without cutting before it breaks the tap. -mechanically rigid tap setups (like those sockets that run off the square drive) you should be VERY gentle with, the moment you start putting torque on it in a setup like that, thats when taps break -you can NEVER have enough lube, ever -clean your tap after every single hole

[@freakadore]

“I drill and tap holes all day every day...” and yet you still watch theses videos. A true enthusiast!

[@KrautSpaceMagic]

@@freakadore I figured if I could learn something that would make my life easier I'd go for it 😂

[@felixf5211]

@@KrautSpaceMagic That's why I watch similar videos, too. This one left a lot to be desired.

[@lornetontegode6986]

As a Tool and Die Maker and have tapped many thousands of holes I can add a bit (get it, a Bit lol). I like that you mentioned pre-drilling. Many drills don't cut an on-size hole as the chisel tip might not be well/poorly sharpened. If you pre drill, the hole's size will be more accurate. Also, have a look at spiral-point taps for through holes, and spiral flute for blind (you can use spiral point for bind but you have to pick out the swarf) . I tap all of the time with hand drills and drill press and never stop on the way in. Run it in and run it out. I hope this helps.

[@KrautSpaceMagic]

@@lornetontegode6986 man I made that comment 2 years ago and that was quite the throwback to that job I worked then. How time flies huh

[@zsozso411]

One thing I’d like to add is that the best drill bits I’ve ever come across are cobalt drill bits, they cut through metal with ease and rarely break. I use German made HSS Cobalt drill bits but you can buy Irwin ones on line as well or whatever as long as it’s cobalt.

[@ronfox5519]

True. And get them- at least the smaller diameters -in screw machine length split point. Another great option is sheetmetal bits, particularly as pilot drills or hole starters. The double enders are a better value.

[@PMD_Bill]

I use a center tool in the chuck and use that to line up the tap in a tap handle and hold it straight. I have never thought to put the tap directly in the chuck of the drill press, but I'm going to have to try your way. :) Also, at most hardware stores you can buy the drill and tap packaged together. "1:00 in the morning, on a Sunday" - Pure gold!

[@lilebkillinit]

Got a drill and tap test in the morning for a job ....perfect video .

[@Jesco92]

This video was very informative and descriptive, awesome job. I broke my first tap in a wall and had to use a titanium steel bit to drill it out.. man was I sweating

[@spaceoddity2485]

Every trade guy has done this at some point. After you have been through this ordeal. You focus on getting it right for future times. 👍

[@amde-michaelmekoya3488]

Best tutorial and information I have seen on the subject. Thank you so much!!!

[@sailawaybob]

Great information i don't use my tap & die kit alot but always something to learn. And i a big fan of cutting oil when drilling, took me years to discover hit over plain oil and maybe just me its like night & day difference.

[@DirtZen]

KZbin University for the win. Really awesome detailed video. Thank you!

[@richm.1583]

66 yoa; never had a clue how to. Very informative. THANK YOU!

[@miguelheras7371]

excellent video demo and explanation done by a professional way to learn the art thread taping I really enjoy enjoyed and learn Thanks

[@kar4tube]

Thank you! Very thorough and extremely helpful. Seems I've always had a working knowledge of basic tapping concepts and steps, but needed a deeper level of detail for my current challenge. I'll be putting your guidance to work on a BMW differential cover plate bolt hole. Was just checking the torque specs on the cover plate earlier this month and discovered one of the bolts was spinning freely. Turns out at some point in the car's history someone had half-assed a helicoil on the hole in question. So, I'm in the process of conducting a thorough thread repair - properly! 👍🏼

[@BGAKIRAKNOXVILLE]

Best video on the subject matter I have found on youtube. Thanks, man. Subscribed.

[@ThatE55Kid509]

I love seeing the rapid tap commercial electrician here and that’s all i use for cutting my greenlee bits last forever!

[@joshuagibson2520]

14:52 this 10° angle is why you try to avoid hand tapping without a center or tapping block if at all possible.

[@sixfivearms8896]

Good stuff. Came here as a beginning designer for firearms parts and found this info applicable. Thanks!

[@jasonhergert7573]

Thanks for your excellent demonstration of drilling and tapping. You have helped this hobbyist well. 😄

[@lettuce001]

Damn this was so interesting. Good stuff. I never knew anything about threads before.

[@SpatialDragon]

I had forgotten about the lettered series of drill bits. Been a long time since I saw them. Great job giving a basic class Davin.

[@reccocon3442]

Much respect -thank you for intro in 101 class. Good instructions and instructor.

[@jerseyshoredroneservices225]

By the right drills, taps and cutting fluid for the material that you're working in. If you're going to drill and tap more than a few holes invest in high quality tools, not the ones that cost a buck at home depot/Amazon.

[@josephsessaph.d.3575]

I believe you did a great job with your tutorial. I would for everones sake always recommend safety glasses no matter the operation. I served in the Navy and witnessed accidents to the eye that could have been avoided but for the shipmate not wearing googles. Thx

[@NeoGhk]

Thank you for the clear demo on how to drive the tap. I bought the taps, they didn't have the handle, it didn't occur to me a drill can be used until I saw you do it. And the hardware store sells each tap separately and no indication what drill bit to use for a chosen tap. I guess it's trial and error at first until I learn what to use with what.

[@mickgatz214]

I was very intrigued by your video. Now that got me thinking of how to 'thread' a custom bolt 8mm/6mm reduction. (couldn't find this anywhere, so I think I'll have to make one) from Australia 😀

[@friguy4444]

Thank you I learned some good things from this video!! A great tip to have had in this would be that if you're tapping on a cylinder head or something where you don't want the shavings to get into the engine or someplace while you're tapping to use some thick grease on the tap and around the tap to catch the shavings so they can be removed before they fall or fly into the engine or area you need to keep them out of. It works!

[@spaceoddity2485]

Yes, good tip. I have heard of that before. The grease from the suspension grease gun is good.

[@paulperlmutter5371]

Very good presentation. Lots of details and a careful and thorough demo of how to tap. Well done!

[@pratikbabhulkar2295]

That's what they need to teach at college , thank you for making this video.

[@crabbee88]

If you don't wanna lug around a full sized drill press they make portable ones you hook your coordless drill to that way you get the straight holes for $30-50 it's an extremely useful tool for delicate field work

[@jamesupton143]

On the drill press you can also just turn the chuck by hand. Great video by the way.

[@mv4ago]

That's exactly how I do it. Start the tap in the drill press turning the chuck by hand, this keeps the tap perpendicular to the workpiece, then finish off with a hand-held tap wrench either T bar or chuck type. I started tapping holes 47 years ago and I've probably broken about 10 taps in all that time.

[@flnthrn2]

And, remove the belt on the drill press to make life easy.

[@jamesupton143]

@@flnthrn2 yes. On my drill press all I have to do is back off the belt a little.

[@lancedyer4870]

This is awesome. Everything I missed in shop class.

[@nathanaelcain9557]

As a HD mechanic I picked up a nice little tip from that video. And that I need that drill index in my kit 😂

[@lornetontegode6986]

There's some good information here and a bit of bad stuff too. I'm a Tool and Die Maker with a lot of experience hand tapping and machine tapping. Firstly, wear safety glasses! Chips are bad enough but when a tap breaks, it shatters. Trust me, I know. The part where you say "that's just the way it works" is just wrong. Hand-taps have straight flutes and need to have the chip broken as you go. On thin sections like the tube, you got lucky. If you want to use the drill press you have two choices. 1) Start the tap and then undo the chuck and finish with a tap handle. 2) Invest in machine taps (spiral point to push the swarf down for through holes and a spiral flute to pull the swarf up for blind holes). It's always a good practice to do a slight countersink at the hole entry as the first thread is less likely to tear out and it's a cleaner, more professional job. A deburring tool can do in a pinch but it's a hack. When hand tapping, use a block like some have suggested or use a small square and check and adjust after tap engages and recheck later and correct. Lastly, the other sizes of drills, ie. letter, number, etc aren't there to fill the gaps in a fractional set, they were created for special purposes (some to create very specific fits or predrilled sizes) or have history on how they were sized (British gauges) and sometimes, by coincidence, conveniently fall in between other sizes. I hope I'm being helpful rather than pedantic but this stuff matters.

[@gearhead444]

100 % correct ! First thing I always observe to judge a pro from a hack is ... safety glasses. You haven't done a lot of drilling/tapping if you are doing it "bareback". I've had pieces of fractured tap impaled in my hand before. That's some high speed shrapnel coming at you when you break one.

[@davebarron5939]

Ahhh ...yes, nothing like that "crunch-snap" sound of your tap breaking in the hole. "Great now what"? LOL nicely done, enjoyed this. Thanks Davin.

[@directorgtr]

Love the straight forward teaching approach. Well done and I've subscribed.

[@UniversalEngineer]

Super clear. Super thorough. (I’ve also manually rotated my drill press to minimize the speed.). THANK YOU!

[@curtklemenz4783]

Super, nice/slow explanation. You must have been a High School shop teacher. Mr. Dwyer would be smiling down on you.

[@rp6879]

Thank you very much for the video. It is full-blown awesome about tap and dies screws and drill bits. I'm new to this and I have some vintage stuff and that really helped me along. Keep on keeping on with the vids brother they're extremely helpful!!👍

[@JeremyAwesomeMontage]

Does anyone know what tap and die set he was using?

[@jarez3781]

Hello Mr. Hagerty. I'm having trouble rethreading a 3/8 coarse thread bolt hole on and engine made of cast iron. It's a brand new tap its' drilled to 5/16 but doesn't seem to want to start or grab to start threading. I read somewhere that it's because of a cheap tap and I didn't pay very much for the set at the auto parts. And advice will be appreciated.

[@KrazyKajun602]

What about drill and tap a cover that is curved at the bottom. I have a curve cover that holds oil for (gear and chain) that I wish to do a drain hole at the bottom .

[@Grainsauce]

Could you guys create a playlist on your channel with all of the DIY Video series, unless it's already there I couldn't find it!

[@matthewboyd5953]

Thank you so much for sharing all this knowledge; that was a great rundown.

[@briansmythe3000]

Nice I Just re tapped the Spark plug Holes for my Beetle with the Aid of a mini Drill press Cos I wanted it too be nice and Square , For the inserts

[@chuckbrown2765]

Davin your awesome! Love the videos you do but i have one ask. Please wear safety glasses when drilling and tapping.

[@torokun]

When you drill the hole, you don’t have to work your way up from small drills to larger drill?

[@chrisprimavera7607]

Pro tip: Drill a hole the OD of your tap in a piece of plastic or aluminum about 1" thick. Hold the block over the hole you want to tap and inset the tap. The block will keep your tap perpendicular to your hole.

[@crazyethanyeahyeah]

Awesome video! Ethan from Australia

[@007lakay]

Thanks for the video. What is the drill bit size to use in relation to tap bit? Say I'm tapping a 5/8 hole, what is the drill bit size to make an initial hole?

[@ASQUITHZ9]

Hey! no mention about Spinal Tap!!

[@ugaugauga488]

Question: At 19:43 on why not having to do back and forth with the machine, the question still stands because the purpose of the back and forth is to clear the debris into the flute, so how come you don't have to clear the debris with the machine? Won't the buildup of debris result in too high a resistance and the bit breaking? Won't the debris damage the thread as it's being created?

[@lornetontegode6986]

Yeah, it's not "just the way it works" at all. Never run a hand tap all the way without clearing the chips as you tap. Use the drill press to start the tap, remove the chuck, and use a tap handle to finish tapping. If you want to use a drill press, invest in machine taps which have either a spiral point or spiral flute to clear the swarf forward or backwards respectively.

[@40mmmikemike]

Something important to add that I've learned from is to make sure that you drill and tap as straight as possible and you make sure you get the right size drill bit or you might have uneven threads with one side of the hole with very shallow threads or none at all. This is especially important with very fine threads because the drill bit has to be so close to the size of the tap.

[@josh8887]

What size tap for a 12mm hole ? According to google , it says 14X2 would work but I’m not sure .

[@alfredoalequin]

Soooo good! Complete course and well explained. This is what I was looking for. Thank you!!!

[@shermanjohnson9270]

Brother, your name should be " STRAIGHT TO THE POINT" BECAUSE YOU MADE EVERYTHING SOLID AND STRAIGHT TO THE POINT. 😂❤️👍

[@kw2519]

Pro tip...guide block made of aluminum or Delrin with approximately the hole diameter of your tap or drill. This will ensure your hole and threads are perpendicular to your plane.

[@kw2519]

@Derek Young it’s so helpful with a hand drill. It can also double as a stop. So you can control the depth more easily too

[@TravisHenderson-tj2zq]

Huge help for me, thanks for the great descriptions and small details to keep in mind

[@lark_ch1]

Only thing i do different, i disconnect drillpress from power source, then i take off the belt cover and turn it by hand, this way i dont have problem with high speed.

[@westbay5858]

I have to tap a #10-24 hole tight in a corner of L brace. I can't turn a Tap handle or use a ratchet socket....I need a thin extender. Is there such a tool?

[@mr.matthews67]

What is the brand and model number of that tap and die set. Or is there a good brand of recommendation. I would really hate to go to harbor freight for a tap and die set

[@marioseffraimiadis745]

thank you mate - very nice presentation

[@jy4508]

What tap and die set is this?

[@n.b.p.davenport7066]

Are used my mind, or concentrate really hard and the threaded hole appears..

[@spaceoddity2485]

Excellent! Detailed info well explained. Look no further than this video. Then practice.

[@Stephenpikeman]

Great instructional video, except you forgot your safety glasses when drilling. Regards Stephen

[@JerryMinshull]

Thankyou great job now I will feel more confident on my upcoming project

[@scapriglione8642]

Fantastic video!! Answered so many questions! Well done - thank you!

[@KayvanCrafted]

Thank you for the best Tapping tutorial on the KZbin

[@felixf5211]

Seriously?

[@KayvanCrafted]

Common don't be a buzzkill...It was good

[@felixf5211]

@@KayvanCrafted I was surprised by your comment, as there are some very good thread cutting videos on YT. There's also a multitude of videos like this one, where the host doesn't really know what he's doing. Essentially, this is another dose of digital pollution that obscures relevant content.

[@KayvanCrafted]

@@felixf5211 I would be intrested to know some of the good ones, can you mention any channels?

[@felixf5211]

@@KayvanCrafted Take a look at abom79. He's a machinist and you can find a good number of applicable videos on his channel. Search it for tapping, as a start.

[@LuhRyan]

Doing this crap because my bc axle broke at the inlet and I need a way to get it out

[@nickbarsby3378]

Excellent video. Thanks!

[@nanscott3092]

Good instructor

[@christopherbrown6152]

I just swap drill for tap at the drill press and spin the drill press by hand when tapping, using the drive belts to tug on.