Achieve ultimate tool performance with DMT's easy to use Dia-Paste diamond compound. A light application will create a highly polished; mirror finish; reducing tool friction for a sharper; stronger edge; allowing more use between sharpenings. Use a flat lapping surface such as cast iron; glass; hardwood or leather in conjunction with this product for best results. Works great with the Veritas Steel Honing Plate 05M40-01. Mesh sizes are 4000, 8000 and 15000