An RJ45 pass-through crimping tool is an all-in-one networking tool used to cut, strip, and terminate Ethernet cables. Unlike standard crimpers, it features a built-in blade that automatically slices off the excess copper wires as it simultaneously crimps the pins and locks the connector.How It WorksPrep & Strip: Strip the outer jacket of your Ethernet cable using the tool’s integrated stripper.Arrange & Insert: Untwist and arrange the internal wires according to the T568A or T568B standard, then push them all the way through the front of the pass-through RJ45 connector.Crimp & Trim: Insert the connector into the crimping tool and squeeze firmly. The tool will secure the connector pins into the copper wires while its internal razor cleanly shaves off the excess wire extending from the plug.