These are the same HIGHEST QUALITY diamond polishing pads available today. These are the same quality pads as 3M pads referred to in Concrete Countertops. Do not confuse these pads with cheap thin pads. Color coded for easy identification. Hook and Loop backing for quick pad changes. Available in 50, 100, 200, 400, 800, 1500, and 3000 grits. A convenient 7 pc set includes 1 ea of the 50 through 3000 grit pads. 10,000 grit buffing pads are available in black. Attach these pads to your grinder using a 5" Hook and Loop backing pad, sold separately.
Maximum RPM IS 4000. These pads work best between 2000 and 3000 RPM.