Iris Diaphragm with Adjustable Aperture, 3" Outer, 30mm Max Manufacturer_Austerlitz exposing the longitudinal and transverse

exposing the longitudinal and transverse components of wave motion mechanically

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

5-inch stainless steel rod cradle burettes

and mechanical-advantage experiments (stand base and support clamp sold separately)

Built for industrial-scale dispensing and mixing

Iris Diaphragm with Adjustable Aperture, 3" Outer, 30mm Max Manufacturer_Austerlitz exposing the longitudinal and transverseAdjustable iris from closed to a 30mm maximum aperture inside a 3 inch black metal body, with a 2. 5 inch mounting rod giving 5 inches total length for standard optical bench setups.