Description
Straight flute hand tap NO2 with a 4-6xP second lead, for Unified National Coarse thread UNC 2″ with 4.5 TPI and 2B class of fit, dimensions according to ISO 529 standard with 35.5mm shank and 28.0mm 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
