G17112.4 Countersink - 100°

Countersink with 3-flutes, 100° chamfering angle, maximum diameter 12.40mm with an overall length of 53mm and a head length of 7mm and 8mm straight shank, according to DIN 335 C standard produce a conical seat for BS standard countersunk-head screws and aviation fasteners with a minium hole diameter of 2.80mm, HSS with standard TiAlN coating for machining steel and cast steel, grey, malleable, ductile and compacted graphite cast-iron, cast aluminium and copper or copper alloys