Our line of 3M™ Elite Central-Vacuum-Ready Random Orbital Sanders are best-in-class tools designed to optimize the performance of 3M™ abrasives. Built with a powerful, precision-balanced air-driven motors and durable lightweight aluminum housing, these ergonomically designed workhorses stand up to industrial production and reduce user fatigue for hours of comfortable operation.Elite central-vacuum-ready sanders can be connected to a central vacuum system or used with an external portable vacuum such as a shop vacuum. It has a threaded attachment feature that enables easy yet secure attachment and detachment of a 1" external threaded vacuum hose (sold separately) to effectively eliminate dust from the workpiece and surrounding space. High Performance, Superior Ergonomics Designed with the operator in mind, 3M™ Elite Central-Vacuum-Ready Random Orbital Sanders are loaded with ergonomic features that decrease work strain and improve productivity. Wrist and hand support Extended curved wrist rest reduces stress on hand and wrist and provides additional leverage Recessed lever platform eliminates pinch and pressure points on the operator's palm Three grip sizes enable operator preference. The grip diameter on the tool is 2-3/4” with two additional grip sizes available (diameters of 2-1/2” and 3” sold separately) Reduced vibration The rubber grip absorbs and reduces vibration and features 3M™ Gripping Material for a stronger grip and more control with less effort Durable composite cover extends to the base to absorb vibration and keeps tools in service by preventing cracked housings Enhanced safety features Internal muffler protects operator hearing and will not break off Convenient thumb-controlled speed dial reduces inadvertent speed changes Why Choose a Random Orbital Sander? 3M™ random orbital sanders optimize sanding and surface preparation on wood, metal, fiberglass and composite materials, and many other substrates. Also known as dual action (D/A) palm sanders, these industrial-grade tools rotate the abrasive disc and disc pad in two simultaneous overlapping oval patterns so no single abrasive particle follows the same path twice, producing a random scratch and swirl-free finish ready for paint or varnish.