what size air hose for impact wrench

For most impact wrenches, the correct air hose for impact wrench work is 3/8 inch: it carries enough airflow for common 1/2 inch and 3/4 inch drive tools without choking peak demand. Choose 1/4 inch only for a compact 3/8 inch drive tool on a short run, and step up to 1/2 inch for 1