Draper 1/2" Square Drive Air Impact Wrench Model Number: 4201A In-use data available General duty impact wrench with one hand forward and reverse direction change. Built-in four position power regulator for simple speed and power control. Display carton. Compare View Product Draper 3/4'' Air Impact Wrench Model Number: 48413 In-use data available Draper 3/4'' Air Impact Wrench Compare View Product