Perfect for creating clean openings in shower doors, or kitchen backsplash installations where glass cutting tools are essential Ideal for both DIYer enthusiasts renovating bathrooms and professional contractors handling stone countertop installations requiring electric drill hole openers The Diamantine coated glass hole cutter features efficient centering drill design for high concentricity, ensuring positioning and deeping drilling in materials like glass, marble, and tiles Its electroplated Diamantine grit coating delivers 2x longer life than standard bits, with uniform cutting edges that effectively discharge debris for smooth operations during glass drilling projects Maintain optimal by applying water lubrication during use – this glass drilling tool ' s universally shank fits standard electric drills for versatile materials compatibility, Manufacturer: Jazuaiao