Wide Application extent: Ideal for smoothing and finishing multiple substrates including engineered stone, furniture pieces, wood items, metal surfaces, and automotive components, suitable for both skilled users and home enthusiasts Defined Threaded Center Hole: Features clearly marked 10 / M14 / 16 threaded holes for stable connection with rotary tools, loosening during application for focused work Strong Adhesion Feature: Our water sanding disc attachment pads use advanced bonding technology for secure placement, minimizing shifting during sanding and enabling efficient work permanent Construction: Made from robust, these attachment pads are tested for longevity and can withstand repeated use in tasks while maintaining optimal polishing results Evenly Spaced Fastener Pattern: The well arranged top fasteners improve adhesion and promote consistent abrasion distribution across all areas for uniform finishing outcomes, Manufacturer: ERRORY