All I did was knocked off the rough stuff with a fine mill file and then used 220 grit wet dry sand paper that I cut in small pieces and wrapped around the file. A small round piece of dowel rod or piece of a wood arrow shaft wrapped with sand paper was extremely handy to get the round areas. To get some of the tight spots on the trigger guard and around the wedding bands I wrapped a very dull thin bladed knife with sandpaper.After all was good with 220 I went to 320 grit wet dry. That's as high as I went then just buffed it a little with maroon scotch brite. I wasn't going for a mirror finish, there are still small scratches from the sand paper and even a few small file marks here and there that I didn't worry too much about. The hardest part by far was the trigger guard. Spent 5 hours on it to get it where I was happy, I probably could have spent another 5 on it if I wanted it perfect.