Diamond Grinding Disc (12") is available in 3 sizes: 120 grit for medium, general-purpose or pot-leveling; and 180 grit for fine-smoothing.
Installation: Select a smooth, clean, flat waterproof bat to dedicate. Draw centering rings on the bat. Peel and remove the red film from the back of the disc. Place the disc in the center on the bat adhesive side down, taking care to keep in the center. Press down and keep 25 lbs of weight on it overnight while flat for maximum bond.