The CRP100 Hi-Lok Pliers Equivalent to ZHP100 feature a diamond shaped jaw which allows the pliers to grip from any direction and may be used to remove collars in open access applications. The CRP100 Hi-Lok Pliers Equivalent to ZHP100 are best suited to smaller aluminum collars (-5, -6, -8). Omega Technologies offers 2 styles, both are best suited to small collars. It has been our experience that they do not work as well with large collars, or steel/titanium collars where greater gripping force is required to achieve the required break away torque.