The Gallop Engine Timing Tool Set for Mercedes Benz M133, M270, M274 (G-Z100123) is a specialized kit designed for  precise engine timing adjustments and camshaft work on Mercedes-Benz vehicles equipped with chain-driven 1.6/2.0 direct injection petrol engines (M133, M270, M274) . This tool set is crucial for tasks such as dismantling and assembling the cylinder head, as it includes components to clamp the camshafts securely in place due to the specific construction of these engines. It also features special Star socket bits for camshaft pulleys, ensuring accurate and efficient maintenance