Can be widely used in metal cutting and non-metal cutting industries.With grinding plane, concave and convex surface, wheel grinding, removing flash, burr, pouring riser, chamfering, polishing and many other functions.Surface cutting roughness can be selected from 36 mesh to 1000 mesh.Material: Aluminium, rubber.Style: Solid surface, Serrated surface.Diameter: 86mm(3.39inch).Thickness: 50mm(2inch).Inner diameter: 20mm(0.79inch), 25mm(1inch).Note:1.Please allow 1-3cm error due to manual measurement. Thanks for understanding!2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.Package Included1pc Rubber wheel.