By Tom and Kay Benham, Contributing Editors, Lapidary Journal Jewelry Artist
Oil of wintergreen is an excellent lubricant when cutting with a graver. A very convenient dispenser for the oil can be made from a small empty mint or lozenge tin. Simply drill a 1⁄4 - 3⁄8 " hole in the center of the lid. Place a cotton ball in the bottom of the tin, then saturate it with oil of wintergreen and replace the lid. Dip your graver tip in the tin often while cutting. When not in use, cover the hole in the lid with masking tape. Caution: wash your hands often and don't rub your eyes.