【Multi-shift Torque Adjustment】: Torque adjustable design, easy torque adjustment, stable torque output, can satisfied with all your demands. 【Premium Material】: Simple and fashionable, made of engineering plastics material, innovative integrated structure, with ergonomic anti-slip handle, easy to grip and with comfortable hand feeling, practical and labor-saving. 【Brushless Motor】: The use of a strong magnetics brushless motor, with large torque and adjustable speed which does not generate sparks when it is working, and the motor does not wear, can provides long service time, and greatly enhances the working efficiency. 【Two-speed Regulation Modes】: There are two kinds of speed control modes, 2 gears adjustment and stepless speed adjustment for you get the speed you want. 【Quality Bearings Design】: Full metal gear and bearings are manufactured suing the high carbon hardness steel and quenching heat hardening process for maximum accuracy and stability, easy and accurate to find the position.