EP215/16 UNC Machine Tap Spiral Point

Spiral point tap with chamfer form B with a 3.5-5xP second lead, for Unified National Coarse thread UNC 5/16" with 18 TPI and 2B class of fit, dimensions according to DIN 2184-1 standard with 8.0mm shank and 6.2mm square drive, powder metallurgical HSS-E with steam tempered surface finish for 2.5xD through hole threading in general purpose applications