Detailed Product Description diamond cutting toolFeatures: 1) We can supply grinding wheels and cutting wheels for steel or stone 2) Size: 4", 4-1/2", 5", 7", 9", 12", 14" and 16"Material (the reinforced cutting and grinding discs are made of these materials):1) Aluminium oxide: A 2) White aluminium oxide: WA 3) Single crystal aluminium: SA 4) Zirconia aluminium: ZA 5) Black silicon carbide: C6) ...