SDS + Drill Bit for Masonry Brick Concrete Stone Block Tungsten Carbide Tip

SDS plus drill bits havea special shank withkeyways tosupport theextra torque a SDS Plus drill provides. Narrow side edgesreduce resistance. Sichern "(. The drill bit is not held solidly in the chuck, but can slide back and forth like a piston; it does not slip during rotation due to the non-circular shank cross-section, matching the chuck. ).

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