The Alpen 10.0mm Tungsten Carbide Glass Drill ensures smooth and accurate drilling in delicate surfaces. Its tungsten carbide composition offers reliability and precision when working with glass, porcelain, and ceramics. Recommended for use in rotary mode to maintain accuracy and prevent damage. Brand: Alpen Diameter: 10.0mm Material: Tungsten Carbide Range of Application: Glass, bottles, porcelain, ceramics Operation: Rotary only Features: Precision engineered, durable, suitable for delicate materials