This cup wheel attaches easily to your angle grinder tools. Measures at 5 Inch Arrow Segmented Diamond Cup Wheel 5/8-11” Thread Arbor. This Diamond Cup is designed for fast grinding with a smooth finishing making your job easier and quicker to complete. Each Arrow segment (6 total) are designed for all purpose grinding and applications, with a very high diamond concentration. This diamond cup wheel helps you easily get underneath light coatings and concrete preparation all in one step. Manufactured and sold to hundreds of contractors across the globe.