TREND DWSLF100 LAPPING FLUID 100ML WD 40 or other such lubricants are too thick & result it your tool skating over the diamond surface Suitable for use with all quality diamond abrasive products Use instead of water to reduce the threat of rusting by 95 Reduces possibility of clogging excessive buildup of residue & improves diamond performance A synthetic based petroleum lubricant formulated to be used with diamond compounds It has penetrating qualities & oilwater solubility which not only increases the cutting action but also assures superior lubrication of every diamond particle throughout the honing process Use with Trend diamond abrasives to guarantee a 5year manufacturer warranty