●Versatile 1/4", 3/8", and 1/2" Square Drive Adapters, Universal Extensions Wrench for Small Place ●Chain driven,1:1 gear ratio ●Turns nuts and bolts with zero degree of arc ●Flat Head Allows For Easy Access To Tight Spaces ●Built-in high-strength special chain with a maximum torque of 55.3 ft-lb (75 nm) can save effort and improve efficiency. ●Uses mechanical leverage for quick and efficient tightening.
