EM-Tec HS12 Hitachi stub extender assembly with locking nut, M6/M4, 12mm L

Hitachi HV40 older style T-base SEM stage adapter assembly, compatible with S-4700, S-4500, S-4300, S-42300, S-4100, S-4000, S-800 FESEMs and S-3600N SEM