Spiral point tap NO2 with a 4-6xP second lead, for Unified National Coarse thread UNC 12 with 24 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to ANSI standard with 0.2200" shank and 0.1650" square drive, HSS with bright finish for 2.5xD through hole threading in steel and cast steel
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) - Possible 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) - Primary use
S - High-temperature alloys(superalloys with high temperature stength and corrosion resistant surpassing that of stainless steel) - Possible use
For additional details please check the Manufacturer's site:
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WARNING: Cancer - www.P65Warnings.ca.gov