Description
Countersink with 3-flutes, 90° chamfering angle, maximum diameter 12.40mm with an overall length of 158mm and a head length of 8.6mm and 8mm straight extended shank, according to DORMER standard to produce a conical seat for ISO Metric countersunk-head screws with a minium hole diameter of 2.50mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel
