Diablo Carbide-Tipped Stone, Glass & Tile Bit Set (4-Piece)

Carbide tip withstands impact for maximum durability & superior life versus standard tile and stone hammer drill bits Multi-Ground carbide tip delivers stability and accuracy required for fast, precise hole drilling 3-Flat Shank eliminates spinning in drill chucks Maximum performance in cordless and corded drill drivers Set features 4 bits: 1/8, 3/16, 1/4, 5/16