NSK Wrench  7 x 5.1 mm Fit to H-300, IR-310, ERA-270, BMH-300, MH-300, HA-500, EHR-401, EHL-401, EHR-500, VH-E, NRR-2650, NR-600, NR-601, AMH-300, AMH-301, RA-200, RA-271E RA-2521, RA-H2520 , NR-3080, ABS-1600, EMA-3020S and PMA-3013S