By applying a small amount of Diamond Powder on a ceramic or cast iron lap, you will see superior polishing results when sharpening gravers. For use with Ceramic Lap (#002-415) or Cast Iron Lap (#002-412). 5 carat weight (1 gram) diamond powder.
• Creates polishing surface for ceramic or cast iron laps
• Contains 5 carat (1 gram) at 1/2 micron
• Perfect for use with GRS GraverHone and Power Hone