Overview Reviews Product Description Our re-engineered high quality backing plates for high speed buffing were developed with our 20 years of past expertise in the field. Diameter: 7" Thickness: .5" Thread: 5/8" x 11" Max RPM: 3000 Product Videos Custom Field Product Reviews Write a Review Write a Review × 7" Rigid Grip Backing Plate Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *