Description
Straight flute hand tap NO1 with a 6-8xP taper lead, for ISO-Metric thread M42 with 4.50 mm pitch and 6H class of fit, dimensions according to ISO 529 standard with 28.0mm shank and 22.4mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel
