Property: 1.T27-A24R8BF 180*6*22.23mm 2.High strength and medium hardness 3.Fast working speed ---80m/s 4.Durable working life and excellent grinding performance 5.With ISO certificate Useage of the grinding wheel: mainly used for grinding the metal' s welds, burrs and rough edges in the automobile,ship-building,chemical and metallurgical industries 1.80pcs/carton 2. according to the customers' requirement.