Description
Countersink with 3-flutes, 90° chamfering angle, maximum diameter 6.30mm with an overall length of 154mm and a head length of 5.6mm and 5mm straight extended shank, according to DORMER standard to produce a conical seat for ISO Metric countersunk-head screws with a minium hole diameter of 1.30mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel
