Small burnishers can be made by grinding off the teeth of old needle files and polishing them. Be careful to not over heat the file when grinding as you do not want to remove the temper. These provide nice shape as sizes to get into areas that you cannot reach with polishing wheels. A few strokes of a burnisher will brighten up a small crevice.
How to training videos for Bench Jewelers
See some of the most respected Master Jewelers explain their techniques and tips
on stonesetting, making and repairing jewelry.