Cutting & Grinding Wheel is made of A/O, S/C, suiable for cutting, polishing and grinding for metal, steel, stone, marble Cutting & Grinding WheelFeatures:1 ... , Brown.6. Product diameter: 4", 4-1 / 2", 5", 6", 7", 9", 12", 14", 16". (100mm to 400mm)Benefits:1. Good ... Cutting 4. very long life 5. easy to use Cutting & Grinding Wheel