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 Evenly Spaced Fastener Pattern: The well arranged top fasteners improve adhesion and promote consistent abrasion distribution across all areas for uniform finishing outcomes 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 permanent Construction: Made from robust, these attachment pads are tested for longevity and can withstand repeated use in tasks while maintaining optimal polishing results, Manufacturer: sodeber