We recommend-Before and after daily use, please inject 2-3C.C. of #60 pneumatic lubricating oil (car oil).-After oiling, operate freely for a few seconds.-In general, traditional air compressors compress most of the gas containing water vapor, as well as lubricating oil from the compressor piston. If an oil-water separator is not used, water and oil will enter the pneumatic tool with the air, causing the blades to stick. The tool may not start or may not produce enough torque. It is essential to inject pneumatic oil from the rear air inlet and then operate the pneumatic tool idly for a few seconds to restore normal torque.SPECIFICATIONMax. Idle Speed: 18,000rpmAir Consumption: 4.0cfmAir Inlet: 1/4"Pressure: 90psiCapacity: 1.2mmSize: 11.14x3.15x2.40inN.W.: 1.92 lb.PACKAGE-1 x Cut Off Tool-1 x Air Plug-1 x Allen Wrench-1 x Spanner-1 x Instructions