Spiral flute tap with chamfer form C with a 2-3xP plug lead, for British Standard Fine thread BSF 5/16" with 22 TPI and Medium class of fit, dimensions according to ISO 529 standard with 8.0mm shank and 6.3mm square drive, HSS with bright finish with steam tempering and 40° helix angle for 2xD blind hole threading in general purpose applications
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - Primary use
M - Stainless steel(corrosion resistant steels with ? 11% chromium content) - Primary use
N - Non-ferrous metals(metals including alloys without an appreciable amount of iron) - Possible use
For additional details please check the Manufacturer's site: