18X350mm SDS-PLUS Round Shank Electric Hammer Drill Bits

18X350mm SDS-PLUS Round Shank Electric Hammer Drill Bits *Fast drilling professional bit for SDS or Max systems *Multi Cutter design (5/8" and above) for faster drilling, longer life and rounder holes *Double narrow land flute design for faster dust extraction, less vibration, less friction and more impact energy to the tip.