Crystal & Glass Diamond Saver Half Round File Multi-Purpose Diamond Sharpener

not sure how this would work on finer crystal. Diamond surface is fine and durable.

Not effective for deep chips. Works okay after lots of buffing on tiny chips in crystal glasses

Easy to use and works well without any difficulties.

The handle is a rod vise that doubles as protection for the file rod when not in use.

Metal “diamond” nail file worked better. Could not figure out how to use it

I used this to save some wine glasses. It made the chips smoothed out so the glasses can still be used.