RIDGID 70830 Dark Thread Cutting Oil, 1 Gallon of Dark Pipe Threading Oil Dark is a low odor, anti-mist formulation thread oil 0 degree Fahrenheit working viscosity of 42.5 mm2/s and relative density of 0.878 Improves thread quality producing the best possible results Reduces threading torque Cools threads and pipe during operation and speeds scrap metal removal