About This ✅【HEAVY-DUTY SOCKETS】Made from heat treated chrome vanadium steel with a corrosion-resistant black phosphate finish for power and flexibility in demanding high torque impact tools ✅【SIZE INCLUDE】1/2" Drive Ratchet Handle, 5" Extension Bar, 1/2" Socket Adapter for Power Tools, SAE: 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1" , Metric: 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm ✅【6 POINT DESIGN】6-point design reduces pressure exerted on fasteners during impact. As a result, it minimizes wear and effectively prevents bolt rounding and stripping. ✅【DUAL MARKINGS】Each socket has highly visible laser-etched marking for easy identification even in low light conditions. ✅【ORGANIZED CASE】Come with a heavy duty storage case, making it easy to store and transport to different job sites or workspaces. All AIRTOON Tools meet or exceed ANSI performance standards. It comes with 1 year quality guarantee. Overview Brand : AIRTOON Material : Chrome Vanadium Steel Finish Type : Powder Coated Number of Pieces : 23 Drive System : External Hex