Special cutting oil for environment-friendly super-long deep hole drill

The invention relates to environment-friendly cutting oil special for a super-long deep hole drill, which comprises the following components in percentage by mass: 60 to 75 percent of synthetic ester base oil, 5 to 15 percent of PAO base oil, 15 to 20 percent of composite extreme pressure anti-wear agent, 1 to 4 percent of antioxidant, 1 to 3 percent of antirust agent, 0.5 to 2 percent of metal deactivator and 20 to 200 mg/kg of organic silicon. The environment-friendly cutting oil special for the ultra-long deep hole drill is transparent in appearance water color, can replace an imported product to be used for a deep hole drilling technology, and is particularly suitable for ultra-long deep hole drilling machining with the ratio of the machining hole depth to the hole diameter being larger than 100 and the requirement for the machining precision of the technology being high. The product is good in actual use performance and high in cost performance, and production raw materials are easy to obtain. 本发明涉及一种环保型