Size: 4"x2"5/8-11 thread to be used with grindersMaximum speed 9070 RPMBeveled edges on top and bottom
4" Green Grinding Stone 120 Grit W/ 5/8-11 Thread. Green grinding stones are made from green silicon carbide, which is more abrasive and 30% more durable than black grinding stones. They are used for grinding of granite, marble and other types of stones.
Brand: Toolocity, Model: GSB0120G