Dormer Threading Tap, 1 BSW Thread, 3.175mm Pitch, BSW 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 straight flute 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 a taper lead NO1 for short through holes.

ISO 529 tap standard
Straight flute geometry
Right hand rotation and cutting
Medium inch thread class of fit
Thread form and British standard whit worth