Original Fein carbon brush — part 30711132003 — designed to restore reliable motor contact in Fein polishers, grinders and similar tools. The graphite block measures 5 x 10 x 17 mm and comes with the braided metal lead and flat connector clip already attached for a direct swap into the brush holder.

Fits a number of Fein machines; examples include the FSS 12-27 E, RS 12-70 E and WPO 12-27 E. It’s the same 5 x 10 x 17 mm brush used across several Fein polishers and grinders that specify that size.

Supplied as a single, genuine Fein brush (sold single) and ready for installation — you’ll generally need only a screwdriver and needle‑nose pliers to replace it. This genuine Fein brush is a standard item among Fein parts for polishers and grinders and makes a simple, effective repair to return your tool to normal operation.