Bosch Tool Corporation Bosch Power Tools HC6511 Wild-Bore Carbide Tipped Multi-Cutter Head Thru-Hole Drill Bits, 2 1/8" x 24"

SDS-max Wild-Bore Multi-Cutter X-Head Spiral Drill Bits, 8 in, 1 in Dia.FeaturesSmoother drilling with less vibrationExtends bit life 50%Four chiseling faces and cutting edges double chiseling action...

SDS-max Wild-Bore Multi-Cutter X-Head Spiral Drill Bits, 18 in, 2 in Dia.FeaturesSmoother drilling with less vibrationExtends bit life 50%Four chiseling faces and cutting edges double chiseling...

SDS-max Wild-Bore Multi-Cutter X-Head Spiral Drill Bits, 16 in, 1 in Dia.FeaturesSmoother drilling with less vibrationExtends bit life 50%Four chiseling faces and cutting edges double chiseling...

SDS-max Wild-Bore Multi-Cutter X-Head Spiral Drill Bits, 8 in, 7/8 in Dia.FeaturesSmoother drilling with less vibrationExtends bit life 50%Four chiseling faces and cutting edges double chiseling...

SDS-max Wild-Bore Multi-Cutter X-Head Spiral Drill Bits, 10 in, 1 1/8 in Dia.FeaturesSmoother drilling with less vibrationExtends bit life 50%Four chiseling faces and cutting edges double chiseling...