Manual Hydraulic Crimper Assembly PVC Covered with 1.20" (30 mm) Jaw Opening. Accepts Greenlee KC12, KA12 and KD12 crimping dies as well as industry "U" style dies. New head designs result in lower weight and improved durability - tested to 50,000 crimp cycles. Two-speed pump to reduce cycle time. Ram automatically retracts when crimp cycle is complete - a Greenlee exclusive. Covered head has two layers of PVC that total approximately 3/16" (4.8 mm) thick. The outer layer is black and the inner layer is red. Crimping heads rotate 360.. Smaller and lighter than competitive tools. Includes carrying case. U.S. Patent #6,206,663.