Construction: Electrical Wire Threader Crafted from metal, this electrician's wire threading spring head ensures long-lasting durability and reliable performance in various electrical applicationsDimensions: With a length of 23cm, a hole diameter of 5.9mm, and an overall diameter of 8.9mm, this spring head is designed to fit a wide range of wiring tasks efficientlyEfficient Wire Threading Tool: Specifically designed for electricians, this tool aids in the smooth threading of wires through conduits, making your electrical projects more manageable and time efficientWide Applications: The cable wire puller tool is suitable for pulling and electrical wires through wall cavities, floor conduit, above ceilings, etcDuct Rodder Threader: The through wall wire guide device is used to guide and pull the wire through the occupied duct and panel box Specification: Material: Metal Size Chart: Length: 17cm/6.69inchHole diameter: 0.59cm/0.23inchDiameter: 0.89cm/0.35inch Package Includes: 1xElectrical Wire Threader Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.