Metal bond high precision dicing blades with steel core is compound of steel plate and superabrasive work layer. The steel plate has high strength and high rigidity. They are generally used for deep cutting and grooving. The main features of 1A1 cutting blade: The abrasive layer height is same with the core ; mainly used for high precision slotting and cutting off. The main features of 1A1R cutting blade : The abrasive layer is thicker than the core thickness, which makes easier for chip removal and cooling . It is mainly used for deep slotting and cutting off. Common Specifications: D: 50-400mm T:0.2-2.0mm Any other sizes could be produced according to customers' requests.