DRILLS GLASS AND TILE: Effortlessly creates precise holes in glass windows, mirrors, bottles, and ceramic surfaces. TUNGSTEN CARBIDE TIP: Features an extremely hard spear tip for durable and effective drilling through challenging materials. LOW SPEED OPERATION: Designed for use at low speeds with light pressure, ensuring controlled and safe drilling performance. WATER LUBRICATION: Achieve optimal results and extend bit life by lubricating with water during the drilling process. VARIABLE SPEED DRILLS: Specifically engineered for use with variable speed drills, offering enhanced control and versatility., Weight: 0.02 pounds, Manufacturer: Faithfull