EM-Tec HJ32 Hitachi M4 adapter for holding the Ø32mm JEOL stubs. Can also be used to hold the Hitachi Ø32mm stub or Ø30mm/1.25inch metallographic mounts. Set screw is used to secure the cylinder stubs. Machined from vacuum grade aluminium. Overall size is Ø40x10mm. Includes allen key.