100PCS VELCRO SANDING DISCS 4" (100mm)–40 to 1200 Grit | Hook & Loop for Orbital Sander | Wood/Metal

Velcro Sanding Discs 4"(Also called "Hook & Loop Sanding Pads" or "Quick-Change Sanding Discs")1. Product OverviewDescription: Round abrasive discs with a Velcro (hook-and-loop) backing for easy attachment to compatible sanders.Primary Use: Sanding wood, metal, plastic, paint, and composites with orbital or rotary sanders.2. Key Features✔ Quick-Change System – Swap discs in seconds without tools.✔ Durable Backing – Reinforced cloth or plastic for tear resistance.✔ Compatibility – Fits 4-inch (100mm) random orbital sanders (check tool specs).✔ Variety of Grits – From coarse (40-80) to fine (800-3000) for all stages of sanding.3. Grit Types & ApplicationsGrit RangeBest For40–80Heavy material removal (paint stripping, rust).100–180General sanding (wood leveling, primer prep).220–400Smoothing surfaces before finishing.500+Final polishing (metal, automotive, fine woodworking).4. Material & Abrasive TypesAluminum Oxide – All-purpose, durable (wood/metal).Silicon Carbide – Harder, for metal/glass.Zirconia Alumina – Aggressive cutting (paint/rust).Ceramic – Long lifespan (industrial use).5. CompatibilityTools: Random orbital sandersBacking Pads: Must have hook (loop) side to match disc.6. Advantages Over PSA/Adhesive DiscsReusable – Remove and reattach multiple times.Less Waste – Replace only the disc, not the backing pad.Cooler Running – Better heat dissipation.