Features: 1.Function: A specialised tool used to assist the extraction of the copper washers used to seal diesel injectors where they enter the cylinder head. 2.Thoughtful Design: Ergonomically designed slide hammer is comfortable to touch and use, also easier to remove seals. 3.Easy Operation: The sealing washers sit at the bottom of the orifice, so just screw the tip into the seal and pull out with the help of the slide hammer. 4.Features: Long enough pull rods and heavy enough slide hammers are easier to use. Professional manufacturing, fine workmanship, reliable quality, 5.Durable Construction: The removal tool is made of carbon steel, which is hardness, not easy to deform, sturdy and durable and has a long service life. Specification: Item Type: Diesel Seal Puller Removal Tool Material: Carbon steel Tip Diameter: Approx: 4.5 mm/0.17in(minimum) to 13.2 mm/0.51in (maximum) Application: Automotive General Purpose (generally used in commercial vehicles) Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.