mine Copping Drum Set 5 pieces [Unit: Set] CD5-S 1 S

Catalog number: CD5-S Features: ● Super hard sharpness, safe and easy cutting, combines cutting workability and safety. Applications: ● Metal cutting. Specifications: ● Grit size (#): 36 ● Outer diameter (mm): 18 ● Width (mm): 20 ● Shaft diameter (mm): 6 ● Shaft length (mm): 41 ● Inner diameter (mm): 15 ● Maximum operating speed (rpm): 11000 ● For 6mm shaft grinders Material/Finish: ● Cloth, ceramic, resin ● Iron Set contents/Accessories: ● 5 drums ● 1 drum shank Caution: ● Use at 11000 rpm or less. ● Never touch the main unit while it is operating.