Irwin Impact Masonry Bits 1/4 in Dia x 4 in Brand_Diablo polished steel head is precision

polished steel head is precision balanced with overstrike protection

000 OPM (orbits per minute) to provide a superior finish

and 3/8" x 3"

Globeguard Surrounds Globe For Added Protection

Three cutting spurs for faster

Irwin Impact Masonry Bits 1/4 in Dia x 4 in Brand_Diablo polished steel head is precisionInnovative pressed carbide tip with aggressive cutting angles for faster drilling and longer bit life One piece construction withstands higher torque loads than standard quick change bits Black oxide finish resists corrosion and increases life of bit 1 4" quick change shank is designed to work with impact drivers, and reduces slipping in standard drill chucks