JEOL 500 Micron Ta Gold Coated 6mm OD 1 mm Thick Disk Aperture Cat #802339239 RM 795.60Was: RM 1,060.80
Removable 3 mm Platinum Drilled Aperture 200micron for Philips/FEI TEM EMS 44200 RM 159.12Was: RM 212.16
Removable 3MM Platinum Drilled Aperture 300 micron for Philips/FEI TEM EMS 44300 RM 143.21Was: RM 190.94