Description
Spiral flute tap Yellow Shark with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Fine thread UNF 1/4″ with 28 TPI and 2B class of fit with H4 pitch diameter limits, dimensions according to DIN/ANSI standard with 0.2550″ shank and 0.1890″ square drive, powder metallurgical HSS-E with TiAlN-Top coating and 40 Degree helix angle for 2xD blind hole threading in free machining and plain carbon steel and copper or copper alloys.
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