Timberline 608-298 Carbide Tipped Glass and Tile Drill 5/16 D x 1/4 Quick Release Hex SHK
1/4" Hex Shank design for Quick Release
Withthe unique spear-point tungston carbide tip, these bits will cut aperfectly round hole without chipping or breaking. For use in drill presses and portable drills. Spear-point, ground for long life. For drilling glassand ceramic tile.