This video covers some of the basics of tapping. It covers tap wrenches and some procedures but is not meant to be all inclusive. Tap Wrench video: • Best Ever Guided Tap W...
Thanks for sharing. You put a lot of good information in this video for beginners or novices that do not know very much about taps and tapping holes. This should help a lot of people!
Use a lot of 4-40 thru 1/2-13 spiral taps at work run the 6-32 thru 3/8-16 with my cordless. And yes sometime snap the smaller ones. Not fun than but always good for a ribbing from the guys. Great video with good explanations. Your ending always makes me save my nickle for next weeks exciting thriller to the cliff hanger you leave us with.
Cliff hanger! Good idea. "Be sure and tune in next week when I will show you an easy way to remove a broken tap". Now all I have to do is figure out how to removed a broken tap! Ha
Depending on what I'm tapping, brass or aluminum, I will chuck the tap in the drill press and turn the chuck by hand.. or start it by hand anyway.. Spiral flute taps are well suited to machine tapping be it milling machine (CNC or otherwise), lathe, or drill press (though you have to manually unscrew the tap after powering it in for the later two). For tapping small holes I will use a guide block (as shown by Adam Savage on Tested) to keep the tap straight.
My lathe an mill both have a reverse and I tap quite often with a tap in the tail stock of my lathe. The drill press is too fast and without a reverse plus I always like to chamfer the hole so the guide is already installed in the chuck.
Gday Winky, great topic, I’ve been looking at the spiral flute taps for a while now, all I’ve ever had is the standard normal old school taps which there’s nothing wrong with them but lately if been lazy and been power tapping on the small mill, the spiral taps are the way to go there, there’s a lot to know tapping that’s for sure, take care mate, Cheers Matty
Several years ago I tapped 123 holes in my lathe with a 5/16" spiral flute tap. It broke on the 124th hole. I prefer the spiral point tap because it take less effort but for a blind hole the spiral flute tap is hard to beat. I don't know how that compares to other taps but I was impressed.
Hi Winky, I must admit I've only experience of using standard taps, so your video was interesting to bring me up to speed with alternatives. Thank you. Take care Paul,,
Hey Winky, you probably know this but just in case you don't you can always come up with the tap drill size by using this quick formula: T.D.S.=NOMINAL DIA.(of tap)minus the PITCH(1/threads per inch). For example: 1/2-13 tap is T.D.S.=(.5-.0769), so the T.DS. would be .423, you can do metric the same way. 12mm by 1 tap would be T.D.S. = 12MM MINUS 1MM, SO TAP DRILL WOULD BE, .472-.0393= .432. YOU JUST CONVERT TO INCHES BY MULTIPLYING BY .03937.....
I was aware of these formulas but I always forget them when I need them. Maybe I'm lazy? Or perhaps limited metal (mental) capacity that is being reserved to new tap handles and cool wooden cars. 😃 I'm kidding, thanks for the post!
Not sure what the term means for Plug Tap either. But my use of the Plug Tap is for that exact thing ? Cutting a Thread to insert a Plug into the threaded hole. As most can see by the shape of the Thread Tap it does not have a thread machined all the way to the end of the Tap itself. This aids in locking a fastener into a Tapped hole. ( eg a Plug ) to blank off a hole. Most might know this one as used for Hydraulic fittings or Air fittings. Love your custom made Tap Wrench a good design ( good thinking 99 ).
I figured it might be for a pipe plug. I thick most think of it as an intermediate between a bottom tap and tapered. Thanks on the tap wrench, it's a huge plus to me. Thanks Max! (Good thing I'm old) (99)
@@WinkysWorkshop LOL. I was not sure to add the comment. Good thinking 99 ?? Some get the meaning, but most don,t at first. I was referring to the television show Get Smart. You might remember this show ? 99 always came up with the good ideas. ( good thinking 99 ) Thanks for your reply. All the best. Peter.
Hi Winky. Some of your global viewers use metric. There's an easy way to determine the tapping drill size - just subtract the thread pitch from the bolt diameter. You are right about going slight oversize of course and I really like your powered drill table. BobUK
Very cool on the drill size. i didn't know that. Yeah... that's my square column drill press. The power lift is a $15 3/8" variable speed drill. It has a shaft and sprocket in the chuck and a chain that goes to the lift screw.
Spiral Flute Thread Taps are used for Blind Holes. Meaning a hole that does Not go all the way through the part. The Spiral on the Thread Tap works the same as a Drill Bit. As you are cutting the Thread the Spiral forces the the cut material / chips out of the hole. If this does not happen you can in some cases ruin the thread by re-cutting the the chips in the hole. I hope this makes sense. Regards Peter.
Thanks Winky, that really was excellent info for me. I'll be doing a whole lot of tapping (M6 = 15/64") through 3/4inch aluminium plate - any pointers you can share?
Yes, if it is a through hold use a spiral point tap. Also using a slightly over-sized drill will make tapping much easier and WD40 seems to work well for cutting oil in aluminum.
Excellent tutorial. Most of this was new to me and will be useful. Is there as much to learn about dies? If so, maybe there's a video idea. Anyway, thanx for posting.
Hi Winky, could you do a quick follow up on this. I'd like to know what type of taps I'm ordering so understanding the 'H' numbers etc would be very handy. I used some cheap spiral flute taps with my hand drill driver with the torque tuned down a bit and all was fine, the first one I tapped using my impact drill which snapped the tap in seconds, not recommended.
The H numbers are a clearance. H3 is the most common and gives you a threads .001" to .0015 larger than your screw. This probably has nothing to do with your problem. The recommended drill sizes on most charts is for a 75% thread. Trying to tap full threads would be very difficult and the amount of additional strength would be very slight. Basically only the sharp tip of the threads are missing with a 75% thread. Go with a 60% thread unless you are tapping sheet metal. The hole will be much easier to tap and the amount of strength lost is very small. Here's a chart that shows the 60% drill size (the first page) www.osgtool.com/books/800274CA-V2/resources/_pdfs_/800274CA-V2__.pdf
2) I have found that the spiral flute taps are a weaker tap and work better then guided in a drill press or lathe. The spiral tip tap requires less torque but pushes the chips ahead of the tap. If you have a through hole use the spiral tip but in either case the 60 thread drill size will help a lot. Just to give you an idea, the drill size for a 1/4"-20 is .010" larger than a drill for 75% threads. Hopefully this helps.
Honestly, in my opinion there is a significant difference in lubricating oil and cutting oil but very little difference between cutting oils. I buy the cheapest cutting oil I can find. Other oils I have tried are thicker and stay on the tap a little better but I don't think they work better. In fact, when I use them on my lathe for cut off the thicker oil is a lot more difficult to clean up. - Thanks for asking!
I've got a couple but mind are not tandem. They are just extra long. I think the first half of the tandem thread profile is closer to being a standard thread to make them easier to turn.
There’s nothing wrong with going over the basics. Thank you very much. I did learn a little bit about taps
Cool! Thanks!
@@WinkysWorkshop you sounds like Dennis Weaver 👍
Thanks for taking the time to put this video together just what I needed to see. As my boss said to me never be to proud to learn all the best
Good boss. Thanks
Love the motorised up and down
It's very handy. Thanks, You might want to check this out too czcams.com/video/i4_FtMMMfDw/video.html
Thanks for sharing. You put a lot of good information in this video for beginners or novices that do not know very much about taps and tapping holes. This should help a lot of people!
Thanks, that was my intent. Hopefully it works.
Another nice video! Always look forward to watching you work.
Thanks!
Use a lot of 4-40 thru 1/2-13 spiral taps at work run the 6-32 thru 3/8-16 with my cordless. And yes sometime snap the smaller ones. Not fun than but always good for a ribbing from the guys.
Great video with good explanations. Your ending always makes me save my nickle for next weeks exciting thriller to the cliff hanger you leave us with.
Cliff hanger! Good idea. "Be sure and tune in next week when I will show you an easy way to remove a broken tap". Now all I have to do is figure out how to removed a broken tap! Ha
Depending on what I'm tapping, brass or aluminum, I will chuck the tap in the drill press and turn the chuck by hand.. or start it by hand anyway.. Spiral flute taps are well suited to machine tapping be it milling machine (CNC or otherwise), lathe, or drill press (though you have to manually unscrew the tap after powering it in for the later two). For tapping small holes I will use a guide block (as shown by Adam Savage on Tested) to keep the tap straight.
My lathe an mill both have a reverse and I tap quite often with a tap in the tail stock of my lathe. The drill press is too fast and without a reverse plus I always like to chamfer the hole so the guide is already installed in the chuck.
Gday Winky, great topic, I’ve been looking at the spiral flute taps for a while now, all I’ve ever had is the standard normal old school taps which there’s nothing wrong with them but lately if been lazy and been power tapping on the small mill, the spiral taps are the way to go there, there’s a lot to know tapping that’s for sure, take care mate, Cheers Matty
Several years ago I tapped 123 holes in my lathe with a 5/16" spiral flute tap. It broke on the 124th hole. I prefer the spiral point tap because it take less effort but for a blind hole the spiral flute tap is hard to beat. I don't know how that compares to other taps but I was impressed.
Hi Winky,
I must admit I've only experience of using standard taps, so your video was interesting to bring me up to speed with alternatives. Thank you.
Take care
Paul,,
Thanks Paul.
Hey Winky, you probably know this but just in case you don't you can always come up with the tap drill size by using this quick formula: T.D.S.=NOMINAL DIA.(of tap)minus the PITCH(1/threads per inch). For example: 1/2-13 tap is T.D.S.=(.5-.0769), so the T.DS. would be .423, you can do metric the same way. 12mm by 1 tap would be T.D.S. = 12MM MINUS 1MM, SO TAP DRILL WOULD BE, .472-.0393= .432. YOU JUST CONVERT TO INCHES BY MULTIPLYING BY .03937.....
I was aware of these formulas but I always forget them when I need them. Maybe I'm lazy? Or perhaps limited metal (mental) capacity that is being reserved to new tap handles and cool wooden cars. 😃 I'm kidding, thanks for the post!
Your welcome...Love your videos
@@claynorris3559 - Thanks!
They are all over the internet
Not sure what the term means for Plug Tap either.
But my use of the Plug Tap is for that exact thing ?
Cutting a Thread to insert a Plug into the threaded hole.
As most can see by the shape of the Thread Tap it does not have a thread machined all the way to the end of the Tap itself.
This aids in locking a fastener into a Tapped hole. ( eg a Plug ) to blank off a hole.
Most might know this one as used for Hydraulic fittings or Air fittings.
Love your custom made Tap Wrench a good design ( good thinking 99 ).
I figured it might be for a pipe plug. I thick most think of it as an intermediate between a bottom tap and tapered. Thanks on the tap wrench, it's a huge plus to me. Thanks Max! (Good thing I'm old) (99)
@@WinkysWorkshop
LOL.
I was not sure to add the comment.
Good thinking 99 ??
Some get the meaning, but most don,t at first.
I was referring to the television show Get Smart.
You might remember this show ?
99 always came up with the good ideas.
( good thinking 99 )
Thanks for your reply.
All the best.
Peter.
@@weldmachine - Yeah... I got it! That's why I said "thanks Max" (as in Maxwell Smart)
@@WinkysWorkshop
Ok, my mistake, LOL.
This tapped my mental abilities...
HA - thanks for watching
Thanks for creating this thread
@@firearmsstudent HA! You're welcome!
Hi Winky. Some of your global viewers use metric. There's an easy way to determine the tapping drill size - just subtract the thread pitch from the bolt diameter. You are right about going slight oversize of course and I really like your powered drill table. BobUK
Very cool on the drill size. i didn't know that. Yeah... that's my square column drill press. The power lift is a $15 3/8" variable speed drill. It has a shaft and sprocket in the chuck and a chain that goes to the lift screw.
Thanks Winky, I heard about those spiral flute taps but I didn't know what the advantage was in using them.
I haven't used them much myself but they work great!
Spiral Flute Thread Taps are used for Blind Holes.
Meaning a hole that does Not go all the way through the part.
The Spiral on the Thread Tap works the same as a Drill Bit.
As you are cutting the Thread the Spiral forces the the cut material / chips out of the hole.
If this does not happen you can in some cases ruin the thread by re-cutting the the chips in the hole.
I hope this makes sense.
Regards Peter.
Way to go Winky that should get someone started on tapping.
Hopefully... it's not complete but all most would need to know I think. Thanks
Hey Winky....thank you for the tutorial.....my biggest concern (always) tapping straight....some good tips. Best wishes and take care.
Thanks and your welcome.
Thanks Winky, that really was excellent info for me. I'll be doing a whole lot of tapping (M6 = 15/64") through 3/4inch aluminium plate - any pointers you can share?
Yes, if it is a through hold use a spiral point tap. Also using a slightly over-sized drill will make tapping much easier and WD40 seems to work well for cutting oil in aluminum.
@@WinkysWorkshop Greatly appreciated Winky's Workshop.
Excellent tutorial. Most of this was new to me and will be useful. Is there as much to learn about dies? If so, maybe there's a video idea. Anyway, thanx for posting.
Thanks! I need to investigate dies. I have a set of adjustable dies and a few that are not. I'd like to know why.
Hi Winky, could you do a quick follow up on this. I'd like to know what type of taps I'm ordering so understanding the 'H' numbers etc would be very handy. I used some cheap spiral flute taps with my hand drill driver with the torque tuned down a bit and all was fine, the first one I tapped using my impact drill which snapped the tap in seconds, not recommended.
The H numbers are a clearance. H3 is the most common and gives you a threads .001" to .0015 larger than your screw. This probably has nothing to do with your problem. The recommended drill sizes on most charts is for a 75% thread. Trying to tap full threads would be very difficult and the amount of additional strength would be very slight. Basically only the sharp tip of the threads are missing with a 75% thread. Go with a 60% thread unless you are tapping sheet metal. The hole will be much easier to tap and the amount of strength lost is very small. Here's a chart that shows the 60% drill size (the first page) www.osgtool.com/books/800274CA-V2/resources/_pdfs_/800274CA-V2__.pdf
2) I have found that the spiral flute taps are a weaker tap and work better then guided in a drill press or lathe. The spiral tip tap requires less torque but pushes the chips ahead of the tap. If you have a through hole use the spiral tip but in either case the 60 thread drill size will help a lot. Just to give you an idea, the drill size for a 1/4"-20 is .010" larger than a drill for 75% threads. Hopefully this helps.
@@WinkysWorkshop That's brilliant, thank you very much.
@@WinkysWorkshop Great, you really are a must in the learner's shop!
@@28gwdavies - Your welcome
What about the oil you used? Is there a special thread tapping oil?
Honestly, in my opinion there is a significant difference in lubricating oil and cutting oil but very little difference between cutting oils. I buy the cheapest cutting oil I can find. Other oils I have tried are thicker and stay on the tap a little better but I don't think they work better. In fact, when I use them on my lathe for cut off the thicker oil is a lot more difficult to clean up. - Thanks for asking!
How about a drill tap, with a drill cutting bit at the front
That would be great, I've never seen one.
Watch this and realized I have yet to make that tap holder and I have the parts!🙃
Cool... you will love it!
basic are fundamental 👍🏽
Yep, thanks
!!!.
What's the deal with those weird looking Acme Tandem taps?sure are pricey!
I've got a couple but mind are not tandem. They are just extra long. I think the first half of the tandem thread profile is closer to being a standard thread to make them easier to turn.