The Tormek PA-70 Honing Compound is used straight on the T-3, T-4, T-7 leather wheel strop or the profiled leather honing wheels to remove burrs and polish tool edges to razor sharpness this 3-micron honing compound. Grain averages 3 microns (approximately 8000 grit). This will buff and polish the edge of tools Knives, Wood Chisels, Plane Irons, Spoke Shaves, Carving Tools, Lathe Turning Tools, Knives, and Scissors after using the Tormek Grindstone. One application should last for 510 tools. Work the honing compound into the leather. Do not let the compound dry, apply more oil if necessary.