Eastwood Concours 8 Inch Buff and Polish Kit. The Eastwood Concours 7 in. Backer Plate has standard 5/8 x 11 threads to use with most buffers and polishers and is designed for use with the Eastwood Concours 8 in. Coarse, Medium and Fine Polishing Pads. Step 1: Use the E... - Eastwood Concours 8 Inch Buff and Polish Kit. |