@archeryman8 Agree with @RJ-Adventures . Unless you are slicing daily, you should be fine for a long time if you start with a sharp edge. I have one of the two-stone sharpening jigs with my slicer that rotate as the slicer knife rotates. It seldom gets used. More often than not I just lightly touch up the knife edge with a extra fine Smiths diamond stone while its rotating.