Back Disc 54340

Dynabrade Back Disc 54340 is a 150 mm Velcro-backed backing pad engineered for sanding with vacuum extraction. Its multi-hole, DynaMaze-compatible layout maximizes suction while the short-nap, medium-density urethane pad improves grip and stability. At 10 mm (3/8") thickness it balances rigidity and flexibility. Fits tools with a 5/16"-24 external thread. Lightweight (0.125 kg) and durable for workshop and industrial sanding tasks. No variant-specific differences — this SKU matches the standard Back Disc 54340.