Ruko Extra Long Ground Drill Bits
High performance ground twist drill. Available in sizes 3mm to 12mm.
Description
High performance ground twist drill consisting of heavy-duty high speed steel. the fully ground twist drill has a more precise concentricity. Application areas: steel, alloyed and ulloyed cast iron (up to a strenght of 900N/mm2), grey, malleable, ductile and die-cast iron. sintered iron, nikel silver, graphite, short chipping aluminium alloys, brass and bronze.






