The 3M Pneumatic Random Orbital Sander combines durable, lightweight construction around a powerful precision-balanced motor for professional performance and a swirl-free finish — great for high-production industrial environments where dust extraction is not required.More power. More parts per hour. These discs represent a better solution for tackling medium and high-pressure small-disc grinding jobs. The newest addition to our legendary 3M Cubitron II Abrasive line also features our convenient Roloc quick attachment system for easy disc changes — saving you time in multi-step applications.