With this amazingly powerful briefcase design 1/2" 340 NM Air Impact Wrench Kit by IZOM, you can now feel the power and sheer performance in the tire-changing procedure, general assembly, and other workshop applications. The impact wrench has an ergonomic handle design that makes it very simple to operate throughout the lengthy daily mechanics session. The extension bar, wrench, and impact sockets that come in this complete package make the product highly adaptable to a wide range of tasks.