Description
Straight flute tap with chamfer form C with a 2-3xP plug lead, for National Pipe Taper thread NPT 1″ with 11.5 TPI and Normal class of fit, dimensions according to DORMER-ANSI standard with 28.0mm shank and 22.0mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining, plain carbon and alloy steel and copper or copper alloys
