Cordless impact wrench designed for professional and DIY use Rated voltage: 21V Maximum torque: 350N·m Square drive: 1/2 inch, compatible with standard 1/2 inch sockets Diameter: 12.5mm Impact frequency: 0-3200 impacts per minute Speed: 0-2700 rpm Bare metal size: 20*15.5*8 Battery capacity: 1500 mAh Why you need this impact wrench High torque for tough fasteners: 350N·m delivers the power to remove and install lug nuts, heavy machinery bolts, and other stubborn fasteners with fewer hand tools. Compact and accessible: The compact bare metal size lets you work in tight engine bays and confined spaces where larger tools cannot reach. Controlled performance: Variable speed up to 2700 rpm and adjustable impact frequency up to 3200 impacts per minute give precise control for delicate or heavy-duty tasks. Cordless convenience: 21V battery power and a 1500 mAh battery capacity provide mobility for jobs away from power outlets. Key features and attributes Function: Impact wrench for fastening and loosening high-torque bolts Compatibility: 1/2 inch square drive fits standard 1/2 inch sockets commonly used in automotive and industrial applications Size and portability: Bare metal size 20*15.5*8 for reduced bulk and improved handling Performance: 0-2700 rpm speed range and 0-3200 impacts per minute for effective fastening across a range of materials Power: 21V rated voltage and 1500 mAh battery capacity balance power and runtime Typical applications Automotive maintenance: Removing and installing wheel lug nuts, suspension components, and brake hardware Equipment and machinery service: Fastening and loosening bolts on compressors, generators, and agricultural equipment Construction and assembly: Driving large fasteners and assembly tasks where high torque and portability are required What it delivers Reliable torque output for heavy-duty jobs Practical size for working in tight areas Variable control for both precision and power Includes the specified technical details: 21V rated voltage, 350N·m maximum torque, 1/2 inch square drive, 12.5mm diameter, 0-3200 impact frequency, 0-2700 speed, bare metal size 20*15.5*8, and 1500 mAh battery capacity.