The FEIN 33502038012 Genuine Rotor WL2-38-1 is an original replacement motor rotor for selected FEIN MShyo852-3a high-frequency die grinders operating across 72V, 135V, 200V and 265V machine variants. The rotor forms the rotating section of the electric motor and is suitable for replacing a worn, damaged or faulty original rotor in compatible FEIN high-frequency grinders.