【High Torque 66kg/m & Variable Speed】The 21V wrench provides a maximum torque of 66kg/m, making it the highest torque cordless wrench. No need to worry about not being able to control the speed accurately. There are two speed selections (0-2600 RPM/0-3300 RPM) at the bottom of the wrench, helping you work at the right speed to avoid damaging your work. The tool's speed can be increased by increasing the pressure on the trigger. 【2 × 4.0Ah Batteries & Fast Charger】We know that the battery life of a cordless torque gun is what matters most to you. Our built-in rechargeable wrench is equipped with 2 × 4.0 batteries, a real-time LED power indicator, and a fast charger. It can enjoy more than 50% battery life and keep the wrench running continuously. You won't have to charge the battery frequently anymore, get an electric wrench, and get more efficiency from your work. 【53.5% More Efficient Brushless Motor】The 21V wrench features a highly efficient brushless motor with stable operation, two speed modes, and up to 3300 RPM. Ideal for tire removal, car repair, and construction, it offers 53.5% longer runtime and enhanced efficiency, making the WH700 electric drill the preferred choice for DIY enthusiasts and professionals. 【3-in-1 Multifunctional Wrench】The 1.2cm wrench set comes with a socket and screwdriver, not only used as a 1/2 impact wrench for tightening or loosening wheel nuts on cars, motorcycles, and commercial vehicles as well as bolts on doors or walls, scaffolding installation, and garage use, but it can also be used as a screwdriver for furniture assembly and other DIY crafts functions. 【2-Way Movement with Brake to Stop】This electric wrench with a stop system for protection, forward and reverse rotation mode. In reverse mode, once the nut or bolt is loosened, the brake stop will activate and reduce speed and torque to protect the nut from flying anywhere to catch it. 【Package Contents】1 × Hammer Drill, 2 × 4.0Ah Batteries, 1 × Desktop Fast Charger, 5 × Impact Sockets (14mm/17mm/18mm/19mm/21mm), 4 × Hex Magnetic Socket (6mm/8mm/10mm/12mm), 8 × Hammer Drill Bits, 6 × Screwdriver Bits, 1 × 1.2cm Hex Adapter, 1 × Universal Hose, 1 × Portable Bag.