The Milwaukee 3010-22 M18 FUEL 1/2" & 3/8" High/Mid Torque Combo Kit includes two high-quality impact wrenches with drive sizes of 1/2" and 3/8". These tools are designed for automotive use and feature a powerful air inlet size of 3/8in. The kit comes with two 5.0ah batteries, ensuring that you have the necessary power to tackle any project efficiently. With the trusted Milwaukee brand name and durable construction, this combo kit is a reliable option for professional mechanics and DIY enthusiasts alike.