3M™ Roloc™ Disc Pad optimizes the performance of our Roloc™ discs and bristle discs by providing the right backup system and a secure attachment for grinding applications. Plus it saves time by eliminating the need to align edges of the disc with the disc pad—the screw aligns the disc, making disc changes quick and easy. 3M™ Roloc™ Disc Pads are rubber disc pads that support 3M™ Roloc™ Discs in a variety of grinding applications. They conveniently mount directly to tools with threaded shafts or can be used with 3M™ Roloc™ Shank to fit collect chunk tools. Use 3M™ Roloc™ Discs with 3M™ Roloc™ Disc Pads for safe, secure performance. Other disc pads may have a deeper threaded cavity which causes the button to continue to tighten down during use. This can cause the button to separation from the disc and lead to potential operator harm.