Product Description: The combined key AUTODELO from the "Professional" series is used for working with fasteners during car repair. Suitable for use in auto repair shops, car service centers, as well as in household settings. - Made from chrome-vanadium steel using the cold forging method at reduced billet temperatures. - The working profiles of the key are manufactured with increased precision and thermally hardened to a hardness of 39-41 HRC. - It has a standard profile for the open part of the key, and an OVER DRIVE profile for the ring part. - The 15-degree angle of the ring jaw relative to the plane of the key provides a more convenient installation. - Wear-resistant, suitable for long-term use under maximum loads. - Protected from corrosion by a matte chrome-nickel coating. Thanks to the OVER DRIVE profile on the ring part of the key, the repair time of the car is significantly reduced. The "Professional" series key is perfectly suited for working with undamaged fasteners, as well as with fasteners that have burrs, bites, and other damages.