Within the hook is used for casing or tubing internal salvage a variety of rope classes, and other litter, such as wire rope, cable, logging wire, scraping the wax. Within the hook is divided into two structural forms of the dead hook and live hook.

Within the hook is used for casing or tubing internal salvage a variety of rope classes, and other litter, such as wire rope, cable, logging wire, scraping the wax. Within the hook is divided into two structural forms of the dead hook and live hook.