Are you sure, perhaps if you turned it around. No just joking. I am pondering over a cup of tea so I think I will have this cracked soon gentalesenior .
Technically I am right so I have "WON". just joking, with my British sense of humour getting in the way of the problem in hand. Sorry, I will keep thinking about it!!
A hand grinder for vegetables, or cheese or nutmeg. Perhaps part off a coffee grinder or rasp file, or to suffer the inertube to repair it. Or something you have invented, but hasn't hit the market as yet.