Shimei deep hole drilling oil is made by blending highly refined base oil and sulfurized fatty acid esters, with high lubricity and extreme pressure, which can effectively prevent mold sintering. Suitable for lubrication of various drills (deep hole drills) and drilling machines (single to multi axis), and can also be used for general metal grinding, cutting, and broaching, but not suitable for lubrication processing of copper and copper alloy materials.