Grąžtas metalui 4.0mm COBALT

Description
Professional twist drill bit with 5% cobalt addition. For drilling in steel, cast
iron, non-ferrous metals and hardened plastics.
Characteristics
– made of very durable M35 high speed steel with 5% cobalt addition for heat resistance
– precision-made and sharpened
– split point technology – uses a specialised cut to provide self-centering drilling,
including drilling in oval surfaces, without the need of centre-punching
– 135° countersink angle
– manufactured in accordance with DIN 338
– round shank