Irwin Impact Masonry Bits 3/16-Inch X 4-Inch

Innovative 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