Diamond Blades Type, CR 19, SP12, SS21, LC 69, TW 22, LA 96, T-56, LM 15, ST 65& LG 91 Diamond BladesType,CR ... -56, LM 15, ST 65& LG 91CR19- (Sintered, Closed Edge) Blades for Ceramic, slate, Limestone and stoneSP12-(Sintered, segment Edge protected ... and granite.LG91- ( Laser, Segment Edge) hard Stone and Granite. Diamond Blades