Hand Tapping Tips: In The Loupe TV Ep. 27

[@lohikarhu734]

I've been using spiral machine taps for a long time, and carefully, because the spiral clears the chips really well. I think another good subject about hand tapping is what kind of "lubricant" to use. Aluminum is easy to cut, but can be gummy, so nice to have a good lubricant, and, stainless can be a brute to hand tap, too, so, a super expert like you could help a lot by educating us on that subject, please!

[@GreySectoid]

Just what I needed, thank you for teaching me

[@ArthurField]

Man, I've been in manufacturing 23 years, and I gotta say, Well laid out Don, watching this leaves no doubt as to when to use each type of hand tap.

[@CuttingtoolCounselor]

Thanks Arthur!

[@danhnguyen435]

Thanks

[@CuttingtoolCounselor]

You are welcome. ctc

[@gillisdebilio7086]

Great, never knew there was a standard of the thread count before the full engagement is reached, does is each manufacturer make their count different?. Why I never seen the exact number for this or that tap? For taping manual don"t really mather but usefull in programming cnc. What are the main differences for a hand plug cutting tap and one made for cnc? Are the both the same? Pick a random one from a box, how you tell them a part?

[@CuttingtoolCounselor]

The start threads are a standard for all Taper, Plug and Bottoming. There is a semi bottoming that is 2-3 threads that some venders sell. A lot of what makes a CNC tap different from a Hand is the geometry! All taps have different reliefs and angles along with a helix to lift chips or a spiral point to push chips. We are going to go over this in the next episode. Best I can tell you for a quick reference is buy a material and application specific tap to get dialed in! Ctc