Diamond Wheel Mounting Type Unmounted Shank Diameter 1/8 in Mandrel Type Standard Material Application Carving Ceramics Cutting Epoxy Marble Sawing Sharpening Concrete Wood Max Speed 20 000 RPM Wheel Diameter 7/8 in Wheel Thickness 1/32 in Abrasive Material Diamond Grade Fine Rotary Tool Accessory Type Cutting Wheel