Combination drill-tap with a 30° spiral flute, for Unified National Coarse thread UNC 7/16" with 14 TPI and 2B class of fit, dimensions according to DORMER-DIN standard with 8.0mm shank and 6.3mm square drive, HSS with steam tempered surface finish and 30° helix angle for 1.5xD through hole threading in free machining steel
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - 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: