Are you looking for a wrench that will allow you to reach hard-to-access places and do the job quickly and efficiently? Check out the chain drive extension wrench, which is a tool for every mechanic, handyman, or car enthusiast. Technical specification: Length: 390 mm Thickness: 21 mm Socket size: 3/8 inch Adapter sizes: 1/4 inch, 3/8 inch and 1/2 inch Maximum torque: 53 ft/lb (71.87 Nm) Product features: It is made of high-quality steel, which guarantees its durability and long-lasting wear. It is safe to use with impact and pneumatic wrenches, which allows you to use it for various tasks and projects. It has a zero-degree swing arc, which means that the wrench does not require any angle of rotation to turn. This makes the wrench very precise and easy to use. It has a chain-driven mechanism, which increases the smoothness and durability of use. The chain prevents the wrench from jamming and slipping.