Efficient BL Brushless Motor : The BL motor eliminates carbon brushes, enabling this driver to run cooler and more efficiently, optimize battery energy use for up to 50% longer run time per charge. Powerful electric wrench, multi‑function, super power. Tungsten steel shaft, high hardness and wear resistance. Rubber handle designed, effectively prevents the hand from slipping during use, making it more comfortable to hold. Suitable for unloading tires from car, and car repairs, large construction projects,. But please note that use it within the torque range. For some special scenes such as the screws of large trucks, which require greater torque, our electric wrenches will no longer be applicable at this time. The brushless motor does not generate sparks when it is working, and the motor does not wear. Suitable for construction site shelves, maintenance, woodworking, etc. Adapt to for battery 68V. When using pneumatic tools, just pull the switch trigger. As the pressure on the switch trigger increases, the speed of the device will increase. Press the switch to trigger the LED light, which is convenient for working in the dark.