Cutting & Grinding Wheel is made of A/O, S/C, suiable for cutting, polishing and grinding for metal, steel, stone, marble Cutting & ... , resin 3. Flat center cutting wheel/depressed center cutting wheel4. Note: Arbor hole sizes, thicknesses and colors as per customers' specific orders5 ... to 400mm)Benefits:1. Good heavy duty performance with fast and clean cut-off.2. Usage:for steel, metal, stainless ...