Feature: 1. The exterior of the post converter is glossy, integrally formed without burrs, and the installation is glossy 2. Use this five-pit adaptor for drilling, because the location is accurate and effortless 3. Because the joint is very glossy and the product is lighter, very easy to install and easy to replace 4. The alloy steel material is coated with anti‑corrosion paint, the exterior is not easy to wear and the service life is greatly improved 5. Eliminate the dangerous temptation to remove the shank from the chuck and extend the drill bit to provide a full depth of cut Specification: Item Type: Extension Rod Converter Product Material: Alloy Steel Total Length: Approx. 22cm / 8.6in. Package List: 1 x Rod