Knipex Grip Pliers Round Jaws – Forged Steel 10″. KNIPEX 10″ Grip Pliers-Round Jaws are designed to tightly hold round or flat material making them a versatile heavy-duty tool for various applications. They feature an adjustment screw and release lever for easy use perfect for one-handed operation. The pliers provide high clamping pressure due to the toggle lever action and have a jaw capacity of up to 1 37/64″ for round material up to 51/64″ for square stock and up to 1 3/16″ for hex. The jaws are specifically designed for round workpieces and include a wire cutter. The pliers body is made from high-strength rolled steel while the gripping jaws are made from forged chrome vanadium electric steel.