G40020.5

Countersink with 3-flutes, 90° chamfering angle, maximum diameter 20.50mm with an overall length of 63mm and a head length of 12.5mm and 10mm 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 3.50mm, solid carbide with standard bright finish for machining free machining, plain carbon, alloy and tool steel, ferritic stainless steel, grey, malleable, ductile, austenitic or austempered ductile and compacted graphite cast-iron, wrought and cast aluminium, copper or copper alloys and polymers, titanium or titanium alloys, chilled, hardened cast-iron