Tap Magic is a lubricating fluid that helps keep the cutting edges of your gravers sharp. Use Tap Magic while engraving for cleaner, brighter cuts, extending the life of your gravers, and for less frequent sharpening. The kit includes a 4 fluid ounce container of Tap Magic cutting fluid and a sealable sponge pad. The pad allows you to apply lubricant quickly and easily by touching the graver edge to the sponge. Made in USA.