The OEM TOOLS 24486 Brushless Cordless Impact Wrench features a 1/2" square drive anvil and a heavy duty lithium-ion battery that gives you more torque power and longer life. This cordless electric impact wrench is perfect for loosening and tightening lug nuts. The high-performance brushless motor in this OEM impact wrench provides 40% more run time, 20% more torque, and 10 times more durability. The rechargeable impact gun includes a fast diagnostic charger with optimization and auto shut-off features that save energy, prevent overcharge, and enhance battery life. The square drive anvil on this heavy duty lug nut wrench is heat-treated for strength and durability. This lug nuts impact wrench includes a variable speed trigger for precision control, making it easy to select the best speed for each job. The impact cordless wrench features an electric brake that stops movement when the trigger is released, reducing work time for continuous jobs. And this half inch drive cordless impact gun has a forward/reverse switch for increased control and versatility, which allows for convenient one-handed operation. The compact ergonomic design of this 20V cordless impact wrench reduces user fatigue while adding comfort with a rubber over-mold grip, resulting in better control and improved overall work quality. And this lightweight 20V impact wrench easily performs overhead work and fits into tight spaces. Our impact wrench kits come in a carrying case for safe keeping and easy transport from job to job.