The EZ-RJPRO HD Crimp Tool is designed for the professional installer providing a ratcheted, high leverage, ultra stable platform for consistent, repeatable terminations. This heavy duty tool is the perfect solution when working with high performance, larger OD cables that are tougher to terminate due to larger wire gauges, thicker, harder insulation on the conductors and pair separating splines. Not only will you overcome these connectivity obstacles but you can be assured that every termination will meet FCC specifications. Compatible with all EZ-RJ45 and EZ-RJ12/11 connectors as well as all standard modular plugs, except AMP.