Glass Drill Bits Zinc Coated Spear point reduces cutting pressure for cleaner holes. Cuts a perfectly round hole without chipping or breaking. Best result with lower rpm and good cooling with water, vinegar and turpentine. For use with rotary drills only. For drilling glass, tile, mirrors and ceramics. Grooved hex shank prevents slipping in drill chuck or bit extension. Fits all standard 1/4" quick change chucks. Drill Set are available.
Glass Drill Bits Zinc Coated Spear point reduces cutting pressure for cleaner holes. Cuts a perfectly round hole without chipping or breaking. Best result with lower rpm and good cooling with water, vinegar and turpentine. For use with rotary drills only. For drilling glass, tile, mirrors and ceramics. Grooved hex shank prevents slipping in drill chuck or bit extension. Fits all standard 1/4" quick change chucks. Drill Set are available.
