Oatey Hercules 40220 Dark Cutting Oil, 1 Gallon Excellent lubrication for cutting sharp Threads Nsf registered/usda authorized Contains no nitrosamine-forming compounds or chlorine additives Contains Activated sulfur-lard and extreme pressure-antiwear additive Contains activated sulfur-lard and extreme pressure-antiwear additives Contains no nitrosamine-forming compounds or chlorine additives Excellent lubrication for cutting sharp threads NSF registered/USDA authorized