Mac Tools BWP138 3/8 18V Impact Wrench. This is the 18V Version. The item "Mac Tools BWP138 3/8 18V Impact Wrench/Gun" is in sale since Wednesday, November 24, 2021. This item is in the category "Vehicle Parts & Accessories\Garage Equipment & Tools\Air Tools\Impact Wrenches". The seller is "pebble66" and is located in Manchester.