[(industrial brushless motor - 500nm torque beast)] six craftsmen 500nm cordless impact wrench delivers an impressive 500nm (369ft-lbs), peak torque, specially designed for demanding jobs such as tire changing, auto repair and construction work. thanks to its efficient brushless motor, it significantly reduces heat generation and friction during operation, extends continuous use time by up to 50% and offers superior durability and energy efficiency compared to traditional motors. [(21v 4000mah lithium battery & fast charger)] this impact wrench comes with a 4000mah high capacity lithium battery and fast charger, greatly extending the running time and minimizing charging times. a smart battery indicator displays the charging status in real time, avoiding unexpected shutdowns and ensuring smooth and efficient performance even during extended use. note that the key is also compatible with makita batteries, allowing flexible and efficient use of resources. [(two speed settings)] with two adjustable speed ranges (0-2000rpm and 0-2500rpm), this impact wrench offers versatility for various applications. the lower speed is ideal for precision operations like tightening bolts, while the higher gear provides more speed and torque for harder materials or more demanding jobs. by easily switching between modes, users can accurately adapt to different scenarios, achieving an optimal balance between efficiency and control. [(forward/reverse mode & safety lock)] this impact bolter is equipped with a front mode for tightening and a back mode for releasing fasteners, as well as a central safety lock button. forward, backward and lock functions can be switched with a single switch. the safety lock prevents accidental activation, ensuring safe use when the tool is at rest or during storage. [(built-in led lighting & soft trigger)] 3-in-1 multi-function design allows it to be used as impact cutter, drill and screwdriver. integrated led lighting clearly illuminates the work area, maintaining accuracy and efficiency even in poorly lit or confined spaces. the led will automatically turn on when the tool is turned on and off after 15 seconds of standby. the trigger is highly responsive, allowing variable speed control depending on the pressure applied, facilitating more delicate and precise work. [(ergonomic & lightweight design)] the tool body weighs only 1.1kg, making it exceptionally lightweight and easy to handle with one hand. this design goes beyond the limits of traditional heavy tools, providing effortless handling even for female users or working at heights. the curved shape is ergonomically adapted to the natural curve of the palm. whether for prolonged tightening/loosening operations or working from different angles, its design minimizes hand fatigue, greatly improving comfort and efficiency during intensive tasks. [(package contents)] 1 x wireless impact wrench, 1 x 4000 mah lithium-ion battery, 1 x quick charger, 4 x impact sockets (17 mm, 19 mm, 20 mm, 21 mm), 1 x 3 inch extension bar, 10 x long screwdriver tips, 5 x wicks of drilling, 1 x toolbox, 1 x 1/2 inch to 1/4 inch adapter, 1 x user manual this complete professional kit is suitable for a wide range of applications, from home maintenance to automotive maintenance. [(reliable after-sales service)] if you encounter any product related problems, malfunctions or damage during use, please feel free to contact us. our customer service team will respond quickly, help diagnose faults and offer solutions.