Description
Spiral flute tap Blue Shark with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Fine thread UNF 3/8″ with 24 TPI and 2B class of fit with H4 pitch diameter limits, dimensions according to DIN/ANSI standard with 0.3180″ shank and 0.2840″ square drive, powder metallurgical HSS-E with Super-B coating and 40 Degree helix angle for 2.5xD blind hole threading in stainless steel.
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