Product description The Autodelo socket and end joint key is used for working with fasteners during car repairs. Suitable for use in auto repair shops, service centers, as well as in households. - Made from chrome-vanadium steel using hot stamping at low blank temperature. - 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, with a twelve-sided profile on the end part. - The joint end of the key provides easier installation. - Protected from corrosion by a matte chrome-nickel coating. Thanks to the joint construction on the end part of the key, repair time for cars in hard-to-reach areas is significantly reduced.