Sturdy metal construction: the tensioner pulley removal tool and engine idler pulley tensioner resist corrosion and are built for frequent, intensive use in different car environments. Includes engine idler pulley tensioner and drive belt tensioner tool. Easy handling: the serpentine belt pulley wrench and adjustment wrench provide comfort and easy handling, enabling smooth maintenance even during extended automotive service. Includes pulley puller and installer kit and engine timing belt tensioner. Multivehicle fit: the auto mechanic tool is suitable for both standard and auxiliary idler wrench requirements, offering fit for timing belt tension and serpentine tension tool applications. Includes automotive timing tools and adjustable spanner wrench. Versatile application: this idler pulley removal tool set is engineered for a wide range of car engine tasks, ensuring compatibility with various engine models and multiple belt widths for maximum usability. Includes pulley removal tool and professional timing tools. Use scenarios Belt replacement on a typical passenger car: use the pulley removal tool to remove the tensioner and the tensioner tool to install the belt with proper tension. Timing belt maintenance: for engines using a timing belt tensioner, employ the tensioner tool alongside the adjustable spanner wrench to adjust and secure the belt. Fleet or multimodel service: in a workshop handling multiple vehicle makes, use the standard and auxiliary idler wrench capabilities to service different engines with varying belt widths efficiently.