The Mechanical Spang Jar is used to provide the ability to exert increased impact on subsurface tools by either jarring up or down. Often called “Spang Jars”, they are composed of two interlocking links which slide very much in the same way as a slide hammer. Like other wireline tools the Mechanical Jars come with a threaded pin and box connection of desired size. The Spang Jar can be used in conjunction with hydraulic jars for increased jarring impact force if desired.
