uxcell Marble Granite Stone 150mmx13mm Diamond Coated Grinding Wheel 600 Grit Product Name : Diamond Grinding Wheel;Material : Metal, Diamond Particles Color : Silver Tone;Outside Diameter : 150mm / 6" Arbor Hole Diameter : 13mm / 1/2";Disc Thickness : 1mm / 0.04" Grit : 600;Weight : 148g Package Content : 1 x Diamond Grinding Wheel