This Regal Diamond Grinding Wheel has a wheel diameter of 3 inches and a thickness of 1.342. The arbor hole size is 3/4 inches and it is made of diamond abrasive material. It is manufactured in the United States and has a grit size of 60/80. This grinding wheel is perfect for use in metalworking supplies and CNC manufacturing. It falls under the categories of Cup Grinding Wheels, Abrasive Wheels, and Abrasives. It is a high-quality product from the trusted brand Regal. Regal This listing is for one Diamond Grinding Wheel.