Description
Straight flute tap with chamfer form C with a 2-3xP plug lead, for National Pipe Straight thread for Mechanical joints NPSM1/4″ with 18 TPI and Normal class of fit, dimensions according to ~ANSI B94.9 standard with 14.3mm shank and 10.7mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and alloy steel and copper or copper alloys
