The Astro Pneumatic 78807 5 piece Pickle Fork Ball Joint Separator Set features solid construction pickle forks in 5 popular sizes. This set is used to remove ball joints, tie rods, pitman arm, and other linkages. One piece design ensures durability, rigidity, and complete transfer of hammering forces. Included are the following sizes to fit most automotive applications: Open Size - 11/16", 15/16", 1-1/16", 1-7/16", and 1-5/8". Depth - 2-3/4" (69.8mm), 3" (76.2mm), 2-7/8" (73mm), 2-3/8" (63.5mm), and 3-1/8" (79.3mm).