Diablo 5/16 In. x 2-1/4 In. Carbide-Tipped Stone, Glass & Tile Drill Bit

Tile & Stone Carbide Tipped Drill Bit provides faster starts and longer life in tile, stone and glass. Optimized with a unique brazing and hardening process, the carbide tip extends life and productivity, allowing users to drill fast, accurate holes. The multi-flat shank provides extra stability by eliminating spinning in the drill chuck.