The cam gear lock kit prevents the camshaft from turning when replacing the timing belt. With this set, different engine-specific equipment is no longer required, as it is universally suitable for most vehicle models with timing belts and engines with single and double overhead camshafts. The patented "multi-point" adjustment for the double camshaft gear lock ensures that the tool will fit all gear diameters. The setting has a horizontal and vertical configuration. Assembly is facilitated by spring preload. The single camshaft gear lock has a new wedge-shaped profile with handle.