Advantage: The series of diamond dises are made of six grit grade, they are used in variety steps: Shaping, lapping and ponishing. The grinding material has lattice-point polyaddition rovngement make products have the features of strong grinding force quality, high elasticity and hard to load at a time, it can extend the product usage life. The product back uses an automatic velcro or an adhesive design settled, this makes products easy to change at the time of operating. It is use for grinding operation of marble surface and edging angle. Features: Dia x bore: 100x16 80x12 Abrasive: Diamond Grit size: P150~3000 Max. Speed: 20m/s