Use sturdy impact sockets from Grainger to tighten or loosen high-strength fasteners that require more torque than standard fasteners. Heat-treated alloy steel helps provide extra strength. Black oxide, black sulfate and other durable coatings help provide corrosion protection. Choose from a huge variety of impact socket drive sizes in flex, magnetic and thin-wall types. Shop Grainger today for tough impact sockets to help you get the job done!