Spiral point tap with chamfer form B with a 3.5-5xP second lead, for ISO-Metric Fine thread M4 with 0.50 mm pitch and 6H class of fit, dimensions according to DIN 374 standard with 2.8mm shank and 2.1mm square drive, powder metallurgical HSS-E with bright finish for 2.5xD through hole threading in free machining, plain carbon and alloy steel and wrought or cast aluminium
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) - Primary use
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