•100% Brand new, high quality and durable, long service life.The preferred grinding wheel is made of high concentration diamond, whose quality is strictly controlled and durable.Excellent performance, high hardness, high compressive strength, good wear resistance, is an ideal tool for grinding hard and brittle materialsand hard alloys.It is widely used for hard and brittle materials with low iron content, such as hard alloy, high alumina porcelain, optical glass, agate stone,semiconductor material and stone material.The preferred grinding wheel is made of high concentration diamond, whose quality is strictly controlled and durable.Outer Diameter:80mm(Approx)The latest activity, offering buy 4 get 1 free activity, for example, if you buy four, we will send you a box directly, a box is five, this way is not breakable!The latest activity, offering buy 4 get 1 free activity, for example, if you buy four, we will send you a box directly, a box is five, this way is not breakable!The latest activity, offering buy 4 get 1 free activity, for example, if you buy four, we will send you a box directly, a box is five, this way is not breakable!The latest activity, offering buy 4 get 1 free activity, for example, if you buy four, we will send you a box directly, a box is five, this way is not breakable!The latest activity, offering buy 4 get 1 free activity, for example, if you buy four, we will send you a box directly, a box is five, this way is not breakable!