Description
Spiral flute tap with chamfer form C with a 2-3xP plug lead, for British Standard Whitworth thread BSW 1/8″ with 40 TPI and Medium class of fit, dimensions according to ISO 529 standard with 3.15mm shank and 2.5mm square drive, HSS with bright finish with steam tempering and 40° helix angle for 2xD blind hole threading in free machining and plain carbon steel
