Professional tool for commercial or occasional use. .Manufactured from carbon steel for strength and durability. .For removing stuck and the seized common rail injectors without dismounting the cylinder head. .Robust construction enables rapid withdrawal / even the most severely seized injector will come out with little fuss. .Suitable for Mercedes CDI engines OM 611 / 612 / 613 646 647 648 etc... Contents: Slide Hammer: 1.75kg Adaptor: M17 x 1.0 Adaptor: M27 x 1.0 for injector nozzle Adapter: puller w/M12 x 1.75P Blow Mold Case Included.(color May Vary) THERE ARE NO MANUAL OR INSTRUCTION. .