Precision dry cutting drill bit designed for delicate stone and tile materials. The 25mm gold hex design delivers clean, chip-free cuts through porcelain, marble, granite, and travertine without water cooling. Ideal for detailed work on decorative tiles and natural stone surfaces. Features a durable gold coating for extended tool life and reduced heat buildup during operation. Revolutionary new wax filled design that requires no water Use an electric drill at 2000-3000 rpm Hole size suitable for Plasplugs red supergrips or similar.