Mark V Lab Metallurgical LOW - HIGH Speed Diamond Saw. This Sectioning Machine offers Blade speeds of 50-3500 rpm with a Gravity Feed System that allows for a wide range of Feed Rates. The MV660R features Automatic Operation and Shut-Off. Internal Coolant Tank cools the blade and sprays the sample for a superior metallographic Cold Cut. Safety features include Low Voltage Controls and Safety Cover Auto-Shut-Off system, Heavy Duty DC Motor and Controller with a cross-sectional capacity of 1 1/2". DB669 Diamond, BB665 Borazon(CBN)and 626-10 Thin Abrasive Blades are used to cut metals, ceramics, composite parts. 110V. Full 1 Year Warranty