This 3 Pcs Thin Wall Deep Impact Socket Set is designed to reach recessed lug nuts with an impact tool. The set includes three sizes: 17 mm, 19 mm, and 21 mm, covering common lug nut sizes found on many passenger cars, SUVs, and light trucks. Key benefits Thinwall design enables access to deep or recessed lug nuts where standard sockets cannot reach. Deep sockets provide added reach to clear brake components, calipers, and wheel housings during wheel changes. Built for impact use, delivering reliable torque without rounding fasteners. Compact 3piece set ensures you have the right size on hand for most wheel service tasks. Precisely machined to fit lug nuts and resist wear during torque sessions. Key attributes Functionality: thin wall, deep reach, impactappropriate sockets for lug nuts. Compatibility: sized for common lug nuts in metric sizes; suitable for use with impact tools on vehicles and equipment that use 17, 19, or 21 mm lug nuts. Size: 17 mm, 19 mm, 21 mm; 3piece set. Performance: designed to withstand torque typical of impact tool use and heavyduty wheel service. Brand alignment: matches the features implied by a 3piece thin wall deep impact socket set for lug nuts in metric sizes. What's inside 3 sockets: 17 mm, 19 mm, 21 mm. Use cases Tire rotation and wheel replacement on passenger cars, SUVs, and light trucks where lug nuts require deep reach. Wheel maintenance and brakeservice tasks in automotive shops or home garages that involve recessed lug nuts. Service on equipment or vehicles that use 17, 19, or 21 mm lug nuts, where access around brakes and wheels is limited. Usage tips Use with compatible impact tools to achieve efficient loosening and tightening of lug nuts. Ensure proper seating on the lug nut before applying torque to prevent rounding. Inspect sockets for wear after heavy use and as needed to maintain reliable performance.