The 201 004 is a 0.4mm DIN 338 type N HSS Rolled Twist Drill, highly efficient standard drill suitable for all usual drilling work in all normal materials. High security against fracture. For use with steel and cast-steel alloyed and unalloyed up to approx. 900 N/mm2 strength, grey cast, malleable cast iron, die-cast metal, iron sinter, nickel-silver, graphite cast iron, short-chipping aluminium alloys, bronze and brass.
- Helical point cut
- 118° Point angle
- 20 to 30° Helix angle
- Vacuum metalized surface
- Right hand cutting
维护与修理
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