IRWIN® I-100 Series 49908 Power Drill Bit, Auger Drill, 1/2 in Drill, 4-1/2 in L Flute, 7-1/2 in OAL, HSS, Bright Drill Chucks Up to 20% faster drilling

Up to 20% faster drilling in natural stone tile

Its large target head striking area reduces mushrooming and protects hands from missed hits

Micro carbide dispersed metal delivers up to 3X longer life than standard carbon blades

Additional Information: 13-11/16 in H DimensionsFeatures:

IRWIN® I-100 Series 49908 Power Drill Bit, Auger Drill, 1/2 in Drill, 4-1/2 in L Flute, 7-1/2 in OAL, HSS, Bright Drill Chucks Up to 20% faster drillingIRWIN Power Drill Bit, I 100 Series, Auger Drill Style, 1 2 in Drill, 7 1 2 in Overall Length, Hex, Straight Shank, 7 32 in Shank Diameter, 3 in Shank Length, 1 Flutes, Spiral, Wide Flute, 4 1 2 in Flute Length, Coarse Screw Point, HSS Cutting Edge, Right Hand Cutting Direction, HSS, Finish: Bright, Applicable Materials: Hardwood, SoftwoodFeatures: Solid center design provides extra rigidity while boring Wide lands keep the bit straight as it bores