The Klein Tools 1628-16AT Chicago Grip is identical to a Bell-System type H Strand Puller. 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.