Wood and Cutting Board Planer LX-640A Product Features This cutting board planer with protection device, when the knife cover opening , machine will be stopped automatically , to avoid the high speed rotating knife fly out from the machine. 1)The Planer can save users significant expense due to the otherwise frequent purchase of new cutting boards. 2)The Planer has additional safety features in which the four steel rollers firmly secure bent the uneven cutting boards on the work table when feeding cutting boards into the blade unit. 3)Our Cutting Board Planer not only returns uneven cutting boards into usable condition, but also prevents other common pressing problems such as hairy edges and incomplete cuts caused by uneven cutting boards during the pressing processes . 4)The Planer is an ideal tool for planing old cutting boards and we are confident that you will satisfy with it .