About sharpening a wood turning tool ... if it is HSS, you can do some initial shaping with a file but you need to make sure you are getting a consistent bevel all around. I also follow filing (or grinding) with a fine honing stone then a hard stone and an Arkansas stone ... again, all at a consistent bevel. If I want a really polished edge, I have a piece of 1200 grit wet-or-dry sandpaper adhered to a flat tile and use it,wet, to put a finely polished edge on the tools.
If you have carbide tipped tools, all bets are off!
If you have carbide tipped tools, all bets are off!