The Klein Tools 1659-5AT Chicago Grip is similar to a Bell-System type -InchB-Inch Strand Puller. It is designed to pull 1/4-Inch figure-8 telephone cable. Plus, it is equipped with a chain, toggle and shackle to keep the grip from falling off the cable. All Klein grips are manufactured from custom drop-forged steel that is machined and heat treated for excellent durability. Each grip is individually hand inspected and actuated for proper function. Grips are also rigorously tested and pulled to rated load to ensure the highest quality and reliability.