Both the 751/2 BNC and RCA Video Crimp Plugs are easy to assemble using the TC1 Crimping Tool and the proper dies. Connections are exceptionally strong and durable.TC1 Crimp Hand Tool. Adjustable scissors ratchet action that is designed for rapid die movement. This results in minimum cycle times and maximum user comfort. Special high quality Swedish steel is guaranteed for a minimum life of 50,000 cycles, maximum crimp force is 2,250 pounds. Die Sets Sold Separately.