Shorter Shaft Equals Less Vibration, Better Control In two diameters — 1/4 inch or 6 mm — our 3M™ Roloc™ Shank enables you to secure a Roloc ™ backup pad to a die grinder or disc sander, adding versatility to tools you may already own. The short, 2-inch (51 mm) shaft of the 3M™ Roloc™ Shank keeps the abrasive closer to the tool, resulting in less vibration and more precise operator control. Quick Change Attachment for Greater Productivity The Roloc™ quick change discs are smaller discs that have a plastic threaded button or screw designed to attach to a Roloc™ disc pad. Operators can conveniently change discs with a simple twist-off, twist-on motion. The Roloc system provides a secure attachment even for heavy-duty applications, and the variety of available 3M Roloc discs allows swapping from one application to the next in seconds. You Can Count on 3M Abrasives 3M gives attention to every detail of the abrasive process, from discs to tools to all the accessories in between. All 3M accessories are designed to industrial manufacturing standards to build versatility and flexibility into all 3M tools and abrasives and to maximize productivity. The 3M™ Roloc™ Shank belongs to a long line of high-quality abrasive accessories produced by 3M to help businesses like yours operate faster, better and more efficiently.