RUKO 214 003 麻花钻头, 高速钢, 0.3mm, 3mm有效, 19mm总长
The is a 0.3mm DIN 338 type N HSS Ground Twist Drill with split point. Highly efficient standard drill suitable for all usual drilling work in all normal materials. High rotational precision. For use with steel and cast-steel alloyed and unalloyed up to 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.