Check the listing for details. 100-240V Adjustable Electric Automatic Water-Cooled Knife Sharpener Machine. Condition: New. Listed at 289.79 USD. 100-240V Adjustable Electric Automatic Water-Cooled Knife Sharpener Machine Description: Automatic intelligent sharpener Powerful, suitable for grinding and polishing all kinds of flat blades High-quality aluminum alloy frame, portable one-key start switch There is an automatic water supply device for the sanding stone, and the water volume can be adjusted LED intelligent digital display, working time can be set, automatic power off An intelligent induction system is set on the precision guide rail, which automatically senses tools of different lengths to make a suitable running track The tool holder can quickly fix different knives, and flexibly adjust the blade angle of different knives, so that the grinding is more precise Simple operation, high efficiency, precise automatic sharpening