Dormer Countersink DIN 335 C 100 ° nominal-Ø 20.5 mm HSS TiAlN Z.3

Countersink DIN 335C 100 Degrees D. 20.5 mm HSS TiAlN Z. 3 DORMER: Countersink with 3 cutting edges, 100° chamfer angle, maximum diameter of 20.50 mm, total length of 61 mm, head length of 11 mm, 10 mm cylindrical shank, according to DIN 335 C standard for creating a conical seat for BS standard countersunk screws and aerospace fasteners with a minimum drill diameter of 3.50 mm. HSS with standard TiAlN coating for machining steel and cast iron. Gray, malleable, ductile, and compacted. Graphite cast iron, cast aluminum, and copper as well as copper alloys.