Diablo 1/2 In. x 3-3/4 In. Carbide-Tipped Stone, Glass & Tile Drill Bit Brand_Arnold nickel plated latch bolt is

nickel plated latch bolt is nearly impenetrable and hard to break

high-speed steel bearing guided router bit

For use in pressure balance style faucets

Tack-free in 3-10 minutes

Surface mounting

Diablo 1/2 In. x 3-3/4 In. Carbide-Tipped Stone, Glass & Tile Drill Bit Brand_Arnold nickel plated latch bolt isDiablo made carbide tip withstands impact for maximum durability & superior life versus standard tile & 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