Description
Countersink with 1-flute, 82° chamfering angle, maximum diameter 1.1/4″ with an overall length of 3.1/2″ and a head length of 1.1/2″ and 1/2″ straight shank, according to ANSI standard to produce a conical seat for US standard countersunk-head screws, HSS with standard bright finish for machining free machining, plain carbon and tool steel, wrought and copper or copper alloys
