Midland Air Tools stock a wide range of high quality 3/8" air impact wrenches.
What do you use a 3/8 impact for?
Due to its form factor, a 3/8" impact wrench presents the better option if you want to achieve precision while fastening or removing nuts and bolts. 3/8" impact wrenches will allow you to focus all the torque of that tool in one point more easily than with the 1/2 impact wrench.