Diablo 5/16 In. x 2-1/4 In. Carbide-Tipped Stone, Glass & Tile Drill Bit Brand_Do it Best Impact Strong increases shank stability

Impact Strong increases shank stability & durability

round cornered all steel adjustable deadbolt & dead latch fits both 2-3/8" & 2-3/4" backsets

000 hours rated life

light enough to protect from back and arm strain

Grain will be in-matched when finger-jointed

Diablo 5/16 In. x 2-1/4 In. Carbide-Tipped Stone, Glass & Tile Drill Bit Brand_Do it Best Impact Strong increases shank stabilityDiablo 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