Made of heat-treated, modified steel for stability and resistance to high torque. A reliable impact socket is essential when you need to tighten hex screws, nuts, and bolts with your power tool. The PRO Nutsetter Impact is constructed from modified steel to ensure the durability you need for the toughest jobs. It features clear laser markings, making it easy to identify in your toolbox. The PRO Nutsetter Impact is an excellent choice for contractors who require robust and dependable accessories for heavy-duty tasks. The socket's torsion zone absorbs torque stress to ensure that the accessory does not break. Impact-resistant 1/4-inch hex shank for use with impact wrenches and drill drivers.