SUITABLE FOR SHIELDED CAT6/6A CABLES - This connector features a 1.2mm hole diameter and is ideal for use with shielded 23AWG Cat6 and Cat6A Ethernet cables that have a conductor insulation diameter of 1.08-1.16mm. It's a great choice for thicker, shielded cables, including Cat6/Cat6A Direct Burial cables. To ensure optimal performance, we recommend using an RJ45 pass through crimp tool. 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 Unshielded or Shielded direct-burial waterproof cables. GOOD PERFORMANCE Adopting 3 prong 15 micron Gold plat