Size: This flap wheel is 80mm diameter with 1/4-inch dia shank, 80 Grit. Features: Abrasive cloth wheel can be automatically polishing convex and concave as well as all kinds of edges and angles at the same time. Performance: Good elasticity, high grinding efficiency and good heat dissipation, suitable for long-term use. Application: Ideal for root carving, wood carving, polishing, grinding of furniture and metal parts. Fit for: Can be used with pneumatic tools, electric drills, bench drills, pneumatic drills, etc.