E8121/4H5 DIN ANSI Machine Tap, Blue Shark for Stainless Steel, Spiral Flute

Spiral flute tap Blue Shark with chamfer form C with a 2-3xP plug lead, for Unified National Coarse thread UNC 1/4" with 20 TPI and 2B 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 and 40° helix angle for 2.5xD blind hole threading in stainless steel