Set of straight flute hand taps NO7 for National Pipe Taper thread NPT 1/4" with 18 TPI and Normal class of fit, consisting of 1 tap with a 4-6xP second lead and 1 tap with a 2-3xP plug lead, dimensions according to ~ANSI B94.9 standard with 14.3mm shank and 10.7mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys
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) - Primary use
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