Product Description Manual operation Precise paraffin sectioning Specimen retraction on return stroke User-extended ability for desired specification Disposable knife holder The Microm HM 330 is a highly consistent microtome for the precise sectioning of tissue encased in paraffin. Providing user extended ability to cut to desired specification, the HM 330 meets the requirements of biological, medical and industrial laboratories. Offering manual operation, the Microm HM 330 microtome features a section counter and specimen retraction on the return stroke. The unit is also equipped with a quick trim button for fast switching from 10 microms to 30 microms, and a disposable knife holder that can be set for high or low profile blades.