Optical Hand Edge-Grinder Features High quality material, thickened shell, more durable.Easy to use, with almost no maintenance issues.Strong compatibility, suitable for polishing various materials of lenses.Pure copper motor for more stable and durable performance. Eyeglasses Lens Hand Edger and Polisher Parameters Voltage: 110VPower: 120WGrinding type: coarse & fine grindingMachine size: 13.98×8.86×10inch(355×225×255mm)Net weight: 16.2lb Details of the Optical Lens Grinder Enlarged grinding wheel, coarse grinding and fine grinding available, Wider application range. Equipped with polishing wheels after grinding; Transparent protective cover, more convenient. Upgraded ABS material and integrated shaping process, more reliable and durable. Enlarged water storage tank, convenient for continuous operation of the machine. Water regulating valve, the water output can be adjusted according to the actual situation. Drainage outlet, more conducive to wastewater discharge and easy cleaning. One button switch, friendly user design, easy to operate and use. Stable foot pads for more stable machine operation and low noise.