Repair kit for file belt arm #28375. Contains contact wheel, 2 bearings, 1/4-28 screw and washer. Designed with your application in mind throughout the day, industrial professionals fashion and produce various workpieces with unique shapes, dimensions and processing needs. As operators know well, the sequence of steps required to produce these workpieces can vary greatly from part to part. These are some of the reasons 3M™ created the various file belt attachment arm styles to accompany the 3M™ file belt sander (sold separately). In this way, operators are able to use the most appropriate attachment arm for their unique application. 3M™ offers file belt attachment arm repair kits such that end users can economically repair their worn attachments arms instead of replacing the complete assembly.