[Effortless Car Tire Nut Replacement] Delivering 682 N.m of breakaway torque and 488 N.m of tightening force, this 1/2" cordless impact wrench effortlessly removes passenger car tires and handles general mechanical assembly. Perfect for tire changes, automotive maintenance, and light to medium assembly work without requiring a massive air compressor. [Auto-Stop Tech & 3-Speed Control] Say goodbye to flying bolts and damaged threads. The advanced reverse auto-stop technology halts rotation in 0.5s once the nut is loose, protecting your workpiece. Features 3 adjustable speeds (up to 2400 RPM) with a variable speed trigger, giving you precise control for both delicate mechanics and heavy fastening. [Continuous Power for Long Projects] Powered by an upgraded all-copper brushless motor, this impact gun runs cooler, provides 30%more stable power, and extends tool life by 50% vs brushed motors. Equipped with 4.0Ah large-capacity batteries and a fast charger, ensuring you never run out of juice halfway through a 4-tire rotation job. [Built for Dark & Tight Spaces] Featuring a compact ergonomic design and a built-in bright LED work light, this tool illuminates dimly lit engine bays, undercarriages, and nighttime emergency roadside repairs. The balanced, anti-slip grip reduces hand fatigue, making one-handed operation safe and comfortable for over 90% of clamping tasks. [Ready-to-Work Complete Kit] Unbox and start working immediately. This comprehensive package includes 1x 20V Brushless Impact Wrench, 1x 4.0Ah Batteries, 1x Fast Charger, 5x Deep Impact Sockets (17MM, 19MM, 21MM, 22MM, 24MM), 2x Pins, 2x O-rings, 1x Belt Clip, and 1x Storage box. An essential, reliable choice for home DIYers and pro mechanics., Weight: 4.40924524 pounds, Manufacturer: Dong Cheng