Description
Spiral point tap with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Fine thread UNF 1″ with 12 TPI and 2B class of fit, dimensions according to DIN 2184-1 standard with 18.0mm shank and 14.5mm square drive, powder metallurgical HSS-E with steam tempered surface finish for 2.5xD through hole threading in general purpose applications.
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