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.