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. MICROTOME HAS A FEED RANGE OF 1-25 MICRONS IN STEPS OF 1 MICRON EACH. SUPPLIED WITH RAZOR 120 MM LONG WITH BACK AND HANDLE, DUST COVER, HONING PLATE, OBJECT HOLDER SET OF 3 AND OIL CAN. RAZOR SUPPLIED IS MADE OUT OF ALLOY STEEL & DULY HARDENED FOR LONG LASTING KNIFE EDGE.