To increase operator precision and help eliminate rework, 3M™ designed this line of tools with variable speed control trigger. These lightweight tools include a comfortable full coverage composite grip that absorbs vibration and moderates cold temperatures caused by air flow. In addition, the motors are precision balanced to ensure smoother and quieter operation than competitive sanders. These versatile tools provide dual mount capability that allows you to switch between the direct mount, which provides greater visibility and maximum control, and the collet mount, which extends the reach of the tool when required for sanding hard-to-reach areas. The collet mount also provides compatibility with a wide range of abrasive products. Pneumatic 3M™ Pistol Grip Disc Sanders are designed for intermittent spot repairs by skilled, trained professionals in accordance with the instructions in the user manual (included on the product page). These tools are optimized when paired with other 3M products, and designed to be used with 3" and smaller Roloc disc pads as well as other coated and surface conditioning products used for sanding metals, wood, stone, plastics and other materials. The 3M™ Roloc™ TR system provides a quick, secure attachment for products ranging in diameter from 1 to 4 inches. Roloc™ disc pads come in various densities or hardness levels depending on the requirements of the application. The disc pad (also called a backup pad) interlocks with the sanding disc or bristle disc and is attached to the disc sander. This simple assembly provides a secure attachment that is reliable even when working at high speeds. Combining a Roloc abrasive disc with a Roloc disc pad provides convenience, high-quality, and consistent results.