The 3M™ Spindle Extender Kit comes complete with all the components needed to increase the length of spindle on a backstand, bench grinder, benchtop or inline sander in order to align a work surface or create distance to allow movement of an abrasive wheel. The 3M™ Spindle Extender Adapter 30134 is designed to allow mounting of 1 inch wide and 8 inch diameter bristle brushes.