Description
Straight flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 1″ with 12 TPI and 2B class of fit, dimensions according to DIN 374 standard with 18.0mm shank and 14.5mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel
