The Leica RM2155 Microtome was developed for fully motorized sectioning of paraffin and plastic embedded sections. It offers a broad spectrum of applications in routine and research laboratories in histology as well as in industrial materials and quality control. With a Step-Trim function the Leica RM 2155 offers conventional trimming in three trimming increments. The quick release clamping system can be operated with one hand and makes possible extremely fast changing of the specimen clamps with a newly developed retainer system. A simple specimen orientation system with anti-tilt function makes orientation of the specimen easy, safe and precise. STEP-trimming in increments of 5, 15, and 30 microns.Specimen retraction ON/OFF. Motorized precision feed. Motor drive with safety handwheel, adjustable sectioning speed. Display for all major controls ergonomically positioned at eye level. Integrated section waste tray with holder for disposable bags. Micrometer mechanism protected from dust and dirt. The optional, ergonomically designed external control unit (“mouse”) increases user friendliness.