I’ve been working on my new mini lathe and the other day I made a tiny machine screw for an old gun. It was a small part so, after turning I used a jewelers file to clean it up. The scratches left were finer than the 320 paper, I would normally use after a file, so I went to 600gt paper. It worked, but took a lot of time and paper.
Is this normal or am I missing a step that will make it easier? Is there a grade between 320 and 600? There isn’t any where I shop.
Thanks