High quality: all stainless steel columns, with high-strength chrome vanadium steel pipe and solid, have the characteristics of high strength, providing reliable and durable tools for efficient and practical applications P> Good design: the base consists of 54 separate hardened steel elastic pins, which are forged after good heat treatment, and the screw heads are kept tight and seamless to ensure that they will not slide. Universal socket wrenches are usually the strongest honeycomb design. You can save time by selecting the size of the screw/nut according to the space usage 7 mm to 19 mm universal handle. Suitable for 1/4 to 3/4 inch standard nuts and bolts, 7 to 19 mm metric nuts and bolts. The automatic adjustment design allows easy clamping of hex nuts, threaded holes, hooks, tensioners and screw heads. Removable screws, swivel hooks. Remove the screws irregularly. Remove the damaged valve and tighten the knob 105 ° angle: use a standard 1/4 (6.35 mm) hex drill bit,