Diamond coated on the top and sides with 120 grit electroplated diamond, mounted on a 3mm (1/8") shank. Suitable for shaping and grinding various materials such as glass, stone, slate, ceramic, and very hard wood. To help prevent overheating and to preserve the life of the burr, use wet. Available in the following sizes:

• 12mm diameter x 2mm depth
• 16mm diameter x 3mm depth