Sollbry - Pieces 1/4'' Hex Shank Quick Change Socket Holder Adapters, Drill Adapter Converter Socket Extension Bar for 1/4' 1/2' 3/8' Square Drive

【Socket Adapter】Made of heat-treated hardened chrome vanadium steel (CR-V), high hardness, good durability and abrasion resistance. 【Impact Socket Extension Bars】1/4", 3/8" and 1/2" square sockets, 8 different lengths to provide extra length to reach hard-to-reach spaces. 【Anti-Slip Design】Spring-loaded ball bearing on the head to ensure a secure lock in the hand screwdriver, drill or impact wrench, can prevent slippage during use. 【1/4" Hex Shank Socket Adapter】Fits 1/4" quick-change chuck systems or directly into drill chucks, handheld screwdrivers, electric screwdrivers, air drills, etc. 【Wide Application】Ideal socket adapters for your drill, turn your power drill or impact driver into a versatile high-speed nut driver, perfect for DIY and general repairs. Specification Material: Chrome Vanadium Steel (CR-V) Surface Treatment: Black Oxide Coating Hex Shank Diameter: 1/4 inch (6.35mm) 1/4 inch Hex Shank for: 1/4 inch (6.35mm) Square Drive x 4pcs 3/8 inch (9.53mm) Square Drive x 2pcs