Epica Star diamond-coated glass hole saw, designed for drilling precise holes in materials like glass and ceramic tiles.Construction: The tool is made from high-strength carbon steel with a diamond coating for cutting performance and durability.Applications: It is suitable for creating clean holes in brittle materials such as glass, marble, ceramic, porcelain, and granite.Usage Tips: To avoid burning the bit and to ensure a smooth cut, it should be used with water for lubrication.