How to select the proper grip: Three basic factors determine the selection of the proper grip for each specific application. 1) Type of wire or cable. 2) Outside diameter of wire or cable. 3) Maximum safe load required. Correct selection of gripping jaws is also essential to avoid damage to wire or cable. In pulling stranded wire, the jaws should be long enough to take a full lay of cable to avoid damage to the conductor. Three inside jaw contours are offered: Single "V" - Simple three point contact jaws designed for use on small diameter bare wire and cable. Double "V" - Four point contact provides greater gripping pressure and assures proper alignment of wire and cable within the jaws. Designed for high strength steel guy and messenger wire, and extra high strength cables and conductors. Round - Round jaws provide maximum contact and gripping power to minimize conductor damage. This jaw design is recommended for use on bare aluminum, ACSR, and copper conductors . These grips are to be used for pulling lines up to tensio n and are not to be used as anchors.