Proper procedure for NPT tapping & threading?
Re: Proper procedure for NPT tapping & threading?
Didnt read all the post, but you use a pipe reamer 1st before tapping. Much easyer with a tapered minor. If just for a quick home project, no inspection on a OD thread I will turn the tapper on the lathe with the compound. Then use some skill and walk out the tapper with the cross slide while threading. Not as hard as you might think. Some pipe dope and you are done. The junk the Chinese are send us not much better.