【Paragraph 1 – Overview】 The Karramlili 1/2" Brushless Impact Wrench delivers professional-grade power for heavy-duty fastening and loosening tasks. With 450N.m of max torque, it easily handles rusted lug nuts on trucks, SUVs, tractors, and heavy equipment. The 1/2" square drive is compatible with standard impact sockets, making it a versatile addition to any workshop or job site. 【Paragraph 2 – Performance & Versatility】 Two-speed control (0-1600 RPM / 0-2200 RPM) and two impact frequencies (0-1600 / 0-2200 BPM) give you the flexibility to handle any task – from precise assembly to high-speed bolt removal. The 4815 brushless motor runs cooler, lasts longer, and requires zero maintenance, while the ergonomic non-slip grip and forward/reverse switch make operation comfortable and intuitive. 【Paragraph 3 – Battery & What's Included】 Two 4000mAh batteries keep you working while the other charges – no downtime. The built-in BMS protects against overload, overheating, and short circuits for safe, worry-free operation. Includes two premium sockets (φ22×60mm, φ17×78mm) for immediate use. What's Included: 1× Impact Wrench, 2× 4000mAh Batteries, 1× 0.6A Charger, 2× Premium 1/2" Sockets (φ22×60mm, φ17×78mm), 1× Plastic Storage Case, 1× Carton Box, 1× User Manual.