Product description: The АВТОДЕЛО socket wrench joint key is used for working with fasteners in car repair. It is suitable for use in auto repair shops, service centers, as well as in everyday life. - Made of chrome-vanadium steel using the hot forging method with a reduced temperature of the blank. - The working profiles of the key are hardened to a hardness of 39-41 HRC. - It has a standard profile of the open part of the key, and a twelve-sided profile on the socket part. - The hinged socket part of the key provides easier installation. - Protected against corrosion with a matte chrome-nickel coating. Thanks to the hinged construction on the socket part of the key, the repair time of the car is significantly reduced when working in hard-to-reach areas.