Porcelain tile cutting blade is used for cutting ceramic, glazed tiles, high hardness antique tiles, and vitrified tiles. It features fast cutting speed and stable cutting, less chipping. Porcelain tile is a kind of composite polycrystal, which has the features of high hardness, wear-resistance and large brittleness. It has certain requirements for the sharpness of porcelain tile cutting blades. Therefore, the carcass formula design and the grade of diamond type are significantly different from other diamond tools. The carcass should have high hardness and weak wear resistance. The diamond grade is not necessarily high, but the self-sharpness is better.