The 5-inch Rigid BackPlate for Diamond Abrasives provides a firm, flat backing platform for 5-inch hook-and-loop diamond polishing pads and grinding discs. Its rigid body eliminates pad flex under downforce, ensuring even material removal and preventing dishing during edging, beveling, or polishing stone countertops and flat surfaces. Features & Specifications Threaded Arbor: 5/8"-11 thread mounts directly to common hand-held angle grinders and stone polishers. Rigid Construction: Maintains uniform pressure across the diamond pad face to eliminate uneven wear and surface rippling. Hook & Loop Attachment: High-tack Velcro surface enables fast, secure pad changes during multi-grit polishing sequences. Substrate Compatibility: Formulated for grinding, honing, and polishing granite, marble, concrete, limestone, and travertine. Dimensions: 5-inch (127 mm) diameter designed for edge work, tight quarters, and countertop fabrication. Weight: 1 lb.