3M™ Precision Random Orbital Sander 33633, 6 in, 3/16 Orbit, 1/Case 3M™ Precision Random Orbital Sander is a pneumatic sanding tool, designed to deliver high-quality surface preparation and finishing results while helping to improve the performance of your 3M™ Abrasives. Motor housed in aluminum that adds durability and helps reduce vibration . Durable composite cover with soft grip material for added comfort and control . Recessed aluminum lever helps to reduce pinch points . Variable speed adjustment lets you choose the exact speed for your task; thumb control helps you avoid accidental speed changes . Multi-hole backup pad and shroud for strong dust extraction . Part of the 3M™ Clean Sanding System 33633