The ZKTOOL EN-51146 GM Injector Rail Tool Kit is a specialized hand tool set designed for automotive use. Manufactured by ZKTOOL, this kit includes essential tools for working with the injector rail system in GM vehicles. The Manufacturer Part Number EN-51146 indicates it is specifically designed for these types of applications, offering users a unit of high-quality tools to assist with automotive maintenance and repairs. Perfect for mechanics and DIY enthusiasts, this injector rail tool kit provides the necessary tools for efficient and precise work on GM vehicles.