The 7" 120 Grit Flexible Diamond Disc is a medium-fine disc designed for refining and smoothing hard surfaces after initial grinding. Bonded with industrial-grade diamond abrasive on a flexible backing, it provides excellent control and finish quality on materials such as pool plaster, concrete, and natural or engineered stone. The 120 grit is well-suited for intermediate polishing stages, removing fine scratches and preparing surfaces for finer grits or sealing. It fits standard 7” polishers and grinders with compatible backing pads and works effectively in both wet and dry environments, especially when used with water-fed systems for improved cooling and dust control.