Description
Straight flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 9/16″ with 18 TPI and 2B class of fit, dimensions according to DIN 374 standard with 11.0mm shank and 9.0mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel
