Straight flute tap with a 2-3xP plug lead, for National Pipe Taper thread NPT 1/4" with 18 TPI and Normal class of fit, dimensions according to ANSI standard with 0.5630" shank and 0.4210" square drive, HSS with steam tempered surface finish for 1.5xD through or blind hole threading in alloy steel
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - Primary use
K - Cast Iron(castings of iron and carbon alloys with > 2% carbon content) - Possible 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:
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WARNING: Cancer - www.P65Warnings.ca.gov