IDEAL FOR THICKER SHIELDED CABLES - With a hole diameter of 1.2mm, this connector is perfect for shielded Cat6 and Cat6A Ethernet cables that have a conductor insulation diameter of 1.08-1.16mm, such as shielded Cat6/Cat6A Direct Burial cables. We recommend using an RJ45 pass-through crimp tool for optimal. EASY TO USE & SAVE TIME Pass through RJ45 end allows you to verify the wires sequences before crimping and avoiding wire sequence mismatch. Comparing to traditional non-pass through ,closed end types RJ45 plugs, It's easy to use and save time ,and great for beginners & professionals alike. EXCELLENT SHIELDED PERFORMANCE Metal-shielded shell eliminate cross-talk and prevents electromagnetic interference (EMI) that be caused by nearby power lines or appliances.Great for 23AWG Shielded and direct-burial waterproof cables GOOD PERFORMANCE Adopting 3 prong Gold plated contacts ,stronger antioxidant performance and the contacts are closely attached to core an