201 004

RUKO  201 004  麻花钻头, 高速钢, 0.4mm, 5mm有效, 20mm总长

The 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.

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Helical point cut

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118° Point angle

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20 to 30° Helix angle

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Vacuum metalized surface

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Right hand cutting