Ingersoll Rand 2145QiMAX/2155QiMAX Series Air Impact Wrenches Steel hammer case is designed to be strong and durable, to protect the interior components of the air impact wrench. Enhanced socket retention. Seven-vane motor delivers added power with less weight. Finely tuned twin hammer impact mechanism and motor deliver more torque, durability, and efficiency. Feather-touch trigger provides maximum control of this air impact wrench. Anodized end plate for enhanced durability. Patented one-hand forward/reverse control for easy operation. Optimized air flow for maximized performance Pack of 1