1. LCD digital display 2. Lens clamp in gearless 3.3F Cut-Grinding pressure 4. Best grinding wheel 5. Cut-Grinding Time of Single Lens 3 min 6. Life performance of main grinding wheel 10,000 PCs (Below hardness 5# Grade) 7. Built-in count displayer 8. Special water case with multi-function of filter and eliminating alkali