IRIS aperture drawing compass Makers Cabinet brass stainless steel 2-70mm RARE!

Newport UMR5.5 Linear Translation Stage

Newport UTR46SA Precision low-profile aperture rotation stage

Newport M-UMR5.16 Micrometer Positioning Stage Linear Actuated Fixture LOT # 13

Genuine Newport Model M-UMR5.16 Linear Translation Stage FREE SHIPPING

Soiltest 8" Diameter A.S.T.M. Sieve Mesh No 16 Aperture +mash no 20

Leica 10445927 Double Iris Aperture Diaphragm for MZ/M Stereo Microscopes

Brass Steel Sieve Soiltest 8" x 4.5" USA Standard Testing Aperture 75 μm