G1426.3 Countersink with extra radial relief - 90°

Countersink with 3-flutes, 90° chamfering angle, maximum diameter 6.30mm with an overall length of 45mm and a head length of 5.5mm and 5mm straight shank, according to DIN 335 C standard to produce a conical seat for ISO Metric countersunk-head screws with a minium hole diameter of 1.50mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel, ferritic stainless steel, wrought and copper or copper alloys and polymers