Features and Benefits:�Up to 2x Longer Life�Up to 20% faster drilling in natural stone�Hammer mode capability for faster drilling in granite, marble and stone�For use with glass, tile, ceramic, granite, marble, limestone, slate, and stone�Reinforced tip for maximum durability�Precision ground carbide for clean holes�Not recommended for porcelain tile�For use in hammer drill drivers�Round shank�Available in sizes up to �“This drill bit set includes (1) 1/8", (1) 3/16", (1) 1/4", and (1) 5/16" glass and tile bits.