G10612.4 Countersink with Tri-Flat shank - 90°

Countersink with 3-flutes, 90° chamfering angle, maximum diameter 12.40mm with an overall length of 56mm and a head length of 8.6mm and 8mm tri-flat shank, according to DIN 335 C standard to produce a conical seat for ISO Metric countersunk-head screws with a minium hole diameter of 2.80mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel, grey cast-iron, copper or copper alloys