Description
Spiral point tap Blue Shark with chamfer form B with a 3.5-5xP plug lead, for Unified National Fine thread UNF 1/4″ with 28 TPI and 0.002″ class of fit with H5 pitch diameter limits, dimensions according to DIN/ANSI standard with 0.2550″ shank and 0.1890″ square drive, powder metallurgical HSS-E with Super-B coating for 2.5xD through hole threading in stainless steel.
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