MXBAOHENG is a manufacturer specialized in machinery products ,we will provide to you the English Instruction and Professional Service if you purchase from us. Our company adheres to the principle of "customer first, quality first". If you get it from others , you may not get our professional service. I hope you have a good shopping experience. Parameters Speed: 400 rpm Suitable for 4-12 mm tapsPressure: 6.5kg Weight: 1.9kgHigh-quality movement, high torque and long service life.Push-button forward and reverse switch, easy to use.This air tapping machine avoids the limitations of lathe, drilling machine or manual tapping, saving time and labor, not easy to rot, and the tap is not easy to break. Application This Tapping Machine is applicable to all machinery manufacturing industry, machine tools, tooling machinery, plastic machinery, printing machinery, packaging machinery, engineering machinery, automobile and motorcycle parts, aircraft engines and other general purpose machinery industries. Suggestions for using pneumatic tools:Please inject 2-3C.C. #60 pneumatic lubricating oil before and after daily use.After filling the oil, please let it run freely for a few seconds.Generally in traditional air compressors, most of the air source compressed by the air compressor contains water, as well as the air compressor lubricating oil brought out by the piston of the air compressor. If not use the oil-water separator, the water and oil will follow the gas into the pneumatic tool, make the wind blade stick. The stuck blades cannot be separated when the tool is moved together, and it may not start. If it can start, the torque will be insufficient. Pay attention to inject pneumatic oil from the rear air inlet and press the pneumatic tool to idle for a few seconds, and the torque can return to normal.