Features 1、FAST GRINDING EFFICIENCY: The incisive edge of the sanding disc can achieve fast grinding and high working efficiency. 2、6 HOLES: This grinding disc has 6 small holes to help dissipate heat while preventing the sanding surface from overheating. 3、EASY TO OPERATE: Diamond grinding wheels are easy to operate and install, suitable for grinders and angle grinders. 4、STURDY AND DURABLE: The grinding disc is made of heat treated steel body and diamond, which is rust and corrosion resistant and not easily deformed, and can remove materials quickly. 5、WIDE APPLICATION: This grinding pad is suitable for granite, marble, concrete, building tile, artificial stone and other stone grinding processing. Specification Item Type: Diamond Cup Grinding Wheel Material: Diamond, manganese steel Applicable Industry: Concrete processing Production Process: Sintering Color: Gold Outer Size: Approx. 100 x 22mm / 3.94 x 0.87in Inner Size: Approx. 16 x 7mm / 0.63 x 0.28in Diameter: Approx. 100mm / 3.94in Blade Thickness: Approx. 5mm / 0.2in Thickness: Approx. 7mm / 0.28in Package List 1 x Diamond Cup Grinding Wheel