The 3M Roloc Bristle Disc Holder is a convenient and durable backup pad for attaching and supporting Roloc Bristle Discs during collision repair jobs. Hard rubber construction of the pad holds the disc firmly for smoother, more consistent finishes. The assembly easily accepts 3M Roloc Bristle Discs and includes a Roloc shank for direct attachment to grinding tools with 1/4-20 EXT threads.Firm Support, Fast Disc Changeouts Part of our Roloc attachment system to make grinding disc changeouts faster and easier, our 3M Roloc Bristle Disc Holder includes a hard rubber pad, a Roloc shank, an adaptor and all the hardware needed to get the most out of our durable, quick-change 3M Roloc Bristle Discs in collision and auto body repair. The hard rubber pad backs up 3M Roloc Bristle Discs (PNs 18698-18737) for consistent, accurate grinding even during aggressive jobs. The included shank features 1/4-20 interior threads to allow operators to attach the assembly quickly and easily to common grinding tools, such as drills and air tools. Easy Roloc Disc Attachment 3M Roloc Bristle Discs have a threaded hole designed to attach to the holder so that operators can conveniently change discs with a simple twist-off, twist-on motion. No tools are needed, and this quick and convenient method provides a secure attachment and saves operators time when switching discs between grades or applications. Roloc Bristle Discs - Smoother and Faster The Roloc Bristle Disc is an abrasive-filled product that makes deburring, blending, finishing, polishing, and cleaning surfaces easier than ever before. It has been designed to deliver high-quality finish and performance. The Roloc bristle disc offers greater surface conformability and a more aggressive cut vs. traditional wire and bristle products. Greater Possibilities in Grinding Applications 3M uses science to develop complete solutions for even the most challenging collision repair jobs. Our Roloc Bristle Disc Holder is a quick, efficient way to incorporate - and get the most from - some of the finest abrasive technology into aggressive auto body applications including rust and coating removal, deburring and metal surface cleaning.