Trend DWS/LF/100 3.4 Fluid-Ounce Diamond Abrasive Lapping Fluid Suitable for use with all quality diamond abrasive products Apply gentle pressure during sharpening process with minimal amounts of Trend lapping fluid for optimum performance WD 40 or other lubricants are too thick and result in your tool skating over the diamond surface Use of water or water based products may result in rusting as nickel (the bonding medium for the electroplating process) is porous For use with all quality diamond abrasives