Have you ever noticed that the Working Load Limit (WLL) on wire rope slings is not exactly a 5:1 of the wire rope's published breaking strength? This is because each type of termination — as in, a Flemish eye, wire rope clips, sockets, etc. — has something called a "termination efficiency rating," which indicates how well the fitting will hold as a percentage of the wire rope's strength. Efficiency rating on a swage product is telling you how much of the wire rope's published breaking strength y

Listed on every sling is a Working Load Limit (WLL) for each type of hitch: vertical, choker, and basket. There are three numbers, not just one, because the effective strain put on the sling changes depending on how it's used. Vertical is a sort of baseline, choker is a reduced capacity, and basket is an increased capacity. For example, on a Tuffy 2" double-ply synthetic web sling WLL label, you'll see · Vertical: 6,200 lbs · Choker: 4,960 lbs · Basket: 12,400 lbs So why does a choker hitch get