G10616.5 Countersink with Tri-Flat shank - 90°

Countersink with 3-flutes, 90° chamfering angle, maximum diameter 16.50mm with an overall length of 60mm and a head length of 11.1mm and 10mm 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 3.20mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel, grey cast-iron, copper or copper alloys