Universal Rotary Socket Adapter Kit 1/4" 3/8" 1/2" cr-mo Impact Grad 40JEOOTDTY Features: 3-piece set: 1/4-inch, 3/8-inch drive and 1/2-inch drive impact quality universal fittings. Our ball spring design affects the universal joint kit, thanks to the function of smooth and seamless 360 degree rotation. Universal impact seats are made of high-strength, heat-treated chromoly alloy steel. Electric and pneumatic impact wrenches, the spring-loaded engagement ball snaps securely into place, and the through-hole in the drive end locks securely onto the drive spindle. Swivel socket adapters are phosphate coated for maximum corrosion/rust protectionThey are great for car use; No more knuckles from tight spaces! Specification: Material: Chrome Molybdenum Steel 1/2" Size: 70x27x12.5mm/2.76x1.06x0.49in3/8" Size: 53x22x1 0mm/2.09x0.87x0.39in1/4" Size: 44x15x6.35mm/1.73x0.59x0.25inPackage Included: 3X Universal JointNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.