High quality: the column is made entirely of stainless steel, using chrome vanadium steel pipe. high strength and a strong, high-strength core provides reliable and durable tools for efficient and practical applications. Individual hardened steel springs, which are forged with excellent heat treatment and hold the screw bits tight and seamless, ensuring they won't slip. The key to universal socket is the strongest in the honeycomb design. You can choose the screw/nut size according to the use of space to save time. 19mm.^ Fits standard nuts and bolts from 1/4 to 1/4 in. 3/4 in. and metric from 7 to 3/4 in. 19mm. The self-adjusting design makes it easy to grip hex nuts, screw eyes, hooks, turnbuckles and screw heads. Removable screw, rotatable hook. Disassembly of screws, irregular disassembly of screws. Remove the damaged faucet. and tighten the knob.^105 to an electric drill, rechargeable electric drill or wrench; manual, screw or twist nut that stretches into a tight, inaccessible space.^ perfect tools for industries such as automotive, home manufacturing, building and construction.^ Satisfaction Guarantee: If you encounter any problems while using the product, please do not hesitate to contact us. Contact us. Contact us within 30 days for a full refund or exchange.