[ cutting wheel size ]Wheel Diameter, 25mm / 0.98-inch, Hole Diameter: 3mm / 0.12-inch, Mandrel Length,37mm / 1.45-inch, Mandrel Diameter, 3mm / 0.12-inch [Product design features]Full sand wheel, high cutting efficiency, high durability. The kits are good rotating tool accessories. Mandrel handle diameter 3mm, for most small drill and electric grinders. Suitable for most rotary and pneumatic tools. [] The cutting wheel is made of steel, which is more than ordinary grinding wheels. The wheel is coated with fine particles [Multi functional use]Suitable for stone, glass, ceramics, ceramic tiles and other hard materials cutting, sharpening, carving and grinding., Manufacturer: Ounfhtrttk