abstract |
This cutting and grinding oil composition contains (A) 60-97 mass% of a lubricating-oil base oil, (B) 0.1-0.7 mass% of elemental sulfur, (C) 0.05-20 mass% of sulfurized fats and oils, and (D) 0.1-7 mass% of a polysulfide compound, based on the total amount of the composition. |