This Holex Through and Blind Hole German Machine Tap is an uncoated, sturdy through and blind hole machine tap with straight flutes.
Tapered pipe threads (NPT) to ANSI B1.20.1, for threads with sealants.
Tapping hole âŒ€ A:
Pre-drill a plain hole without using a reamer.
Tapping hole âŒ€ B:
Pre-drill a plain hole and then ream it using a 1:16 taper reamer. The taper bore âŒ€ can then be checked laterally by reference to the Dmax check dimension. Variant B for drilling the tapping hole offers the best process reliability for the tapping operation.