I have this. I’ve converted a couple of knives with it. It makes them crazy sharp and a pleasure to use. I haven’t had any problems with scratching or scarring as some reviewers have had. I believe it’s because they got into a hurry using it.
Set some time aside, read the instructions, then reread them. Don’t get into a hurry but be purposely moving your knife in the machine. You don’t need a lot of pressure to work on the blade’s edge. Repetition is the key.
Maybe light some candles? Put on some Prince? Find your rhythm?
Ha ha. Barry White, soft music to set the mood. lol
Or Cannibal Corpse, because serial killers definitely need sharp knives.
Will this work on plastic knives and other prison shank materials? Asking for a friend.
This device is probably a little too big for your “prison wallet”
Oooh what’s that? I want to learn something new today!