Description Surface Prep Discs Scotch-Brite Pads The Very Fine/Maroon disc and the Coarse/Green Buff and Blend Disc should be run at about 1,800 RPM, while the Medium/Blue Disc can be run at approximately 2,500 RPM. 6″, 8″, 9″, and 10″ diameter wheels have a 1/2″ arbor hole. 14″ wheels have a 1-1/4″ arbor hole. Related
