1Function: A specialised tool used to assist the extraction of the copper washers used to seal diesel injectors where they enter the cylinder head. 2Thoughtful Design: Ergonomically designed slide hammer is comfortable to touch and use, also easier to remove seals. 3Easy 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. 4Features: Long enough pull rods and heavy enough slide hammers are easier to use. Professional manufacturing, fine workmanship, reliable quality, 5Durable 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.