Profile: G.S. Instruments Industries (Gemko Labwell) is a manufacturer & exporter of laboratory microscopes. We offer dissecting microscopes, medical microscopes, research microscopes, and general labware. Rotary microtome features heavy cast iron base with entire mechanism covered with a heavy cast iron, protective dust cover. It incorporates a ball & flange type object holder for exact centering of specimen. Lateral movement of knife holder ensures use of complete knife edge. It has a feed range of 1-25 microns, in steps of 1 micron each.