CMI Rope Jack

The CMI Rope Jack is a Mechanical Advantage tool for pre-tensioning static lines, light lifting and cabling. The Rope Jack is small enough and light enough to be carried aloft by a climber for Mechanical Advantage within the crown. The length of the handle on the Rope Jack limits excessive loading to avoid rope damage.  Under no circumstances should a cheater bar be used to increase leverage as it may damage the unit, the rope, or severely injure personnel. lt is designed to be used by only one individual using one hand only; lt shall be removed before any'shock' load is applied; lt shall NOT be used for heavy or dynamic loads as there are other tools available for those applications. It can attach mid-line and can run virtually any length of rope. The MA is approximately 3:1 - no pulleys, no extra rope, minimum weight, minimum friction, quick, easy on-off, works well 'topside', too. The CMI Rope Jack is used to remove slack & stretch for lowering and to lift the tips on light lim