Shopsmith 12052 100 Grit Aluminum Oxide Sanding Discs (15 pack), 5" The quick-change hook& loop holding system allows faster disc changes Extremely durable plastic film backing resists tearing and edge wear The anti-clog stearate coating reduces particle build-up, keeping the high performance grain exposed longer 15 pack 5" 8-hole 100 grit premium hook & loop sanding disc Ideal for wood shaping, contouring and final flattening Last 4 times longer than traditional sanding disc