Dormer Threading Tap, 1 in Thread, 3.175mm Pitch, UNC Standard

The Dormer HSS straight flute hand tap is a versatile tool. It is suitable for hand and machine tapping. With a straight flute design for both through and blind holes. This hand tap has HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys. Available as taper lead NO1 for short through holes.

ISO 529 tap standard
Straight point geometry
Thread form and unified coarse
Right hand rotation and cutting
Internal inch thread medium class of fit