If are looking for a drill bit extension set, then you miss our product. It is specially designed to help you solve your problems. It is easy to use, and the operation process is not complicated. Made of high carbon steel material, high strength, not easy to bend, anti-rust, wear-resistant, stable performance and . Features -Color:Silver -Material:High carbon steel -Size:30.00X1.20X1.20cm/11.79X0.47X0.47in -No matter you are a beginner or a skilled worker, this drill bit extender is a good helper to you. -Sturdy and compact, convenient to carry and store without occupying much space. -The extension drill bit kit is perfect for mechanics, construction work, homeowners. -Provide nice operability, suitable for hard-to-reach screws, allowing you to complete your work better and faster. -The extension drill bit kit is great for anyone who want their jobs can be carried out in convenient and simple ways. Package list: 1 x 150MM drill bit extender 1 x 300MM drill bit extender 2 x wrenches