Simply45 Pass-Through RJ45 Crimp ToolFor Unshielded Internal Ground Plugs Integrated Narrow Strain Reliefs Boots Ratcheted Design & Synchronized Handles Single Screw Blade Replacement System S45 C100 The Pass Through RJ45 Crimp Tool from Simply45 is designed for unshielded and internal ground shielded pass through RJ45 modular plugs. With feedback from professional installers, this heavy duty crimp tool was designed with superior features all around. These include ratcheting,