Description
Straight flute tap with chamfer form C with a 2-3xP plug lead, for National Pipe Taper thread NPT 1/4″ 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 alloy steel
