Metallipuur ∅4,2mm HSS-koobalt 5% / DIN338

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