The perfect addition to your toolbox, the spring loaded pins move to fit most screw in fasteners; hexagonal and square nuts and bolts, hooks, wing nuts, and more, even damaged and rusted fasteners that your other tools can't get a grip on . Doesn't matter if it's metric or imperial, it will fit most fatteners between 7mm(1/4") and 19mm(3/4"), and you can use your socket wrench or drill with the supplied adapter. 

Features:

• Unique design automatically adjusts to any size or shape, compact and easy to carry
• Can be disassembled various shapes nuts, screws, hooks, lag screws, and bolt heads ect
• Stainless steel construction with 54 individual hardened steel spring pins that retract to the shape of most objects
• Professional grade universal socket wrench Grip 7mm -19mm, Can be used in automotive industry, household maintenance, manufacturing industry, construction