Sharpening plug and tenon cutters

We had some questions about the tenon cutter from our last IG post so I thought a follow up would be worthwhile. I think I bought this Stubai cutter 20 or more years ago so have sharpened it many times. This particular brand might be hard to fins, but Fisch has a very similar design that you should be able to buy easily enough. I know Dictum has them. hope this video is helpful!