??Universal Socket?- SELF ADJUSTING from standard 1/4in - 3/4in and metric 7mm - 19mm with no more than 450NM torque; Unscrew most metric, standard, wing nuts, broken nuts, stripped nuts, eye bolts, square nuts, hexes and other odd shape fasteners that you don't have the right tool for ??Adjustable design?Unique design automatically adjusts to any size or shape, compact and easy to carry. The design of the Hexgon and Spring Pin can be closely engaged with the parts, seamless, not easy to slippery ??Chrome Vanadium Steel?- Each socket contains 54 steel spring pins made of high quality hardened steel, heat treatment finishing, the hardness can reach 56HRC, high hardness, torque, strong rust resistance, can provide adequate service life and reliability ??Wide Application? - Universal socket coming with Power Drill Adapter and 3/8'' dr. Socket Extension Bar; Can be used with power drill tools or 3/8'' socket wrench; Suitable for automobile industry, home maintenance, manufacturing, construction and other industries, also favored by home decoration DIY design enthusiasts ??Package Contents?- 1×Tacklife ASW01A Universal Socket, 1×Power Drill Adapter, 1×3/8'' dr. Socket Extension Bar, 1×Kraft Paper Package