Answer
Sep 15, 2026 - 07:52 AM
Router collet extensions can be used safely if they are high-quality, properly installed, and used within their recommended speed limits. However, they may introduce additional runout and reduce the rigidity of the setup, increasing the risk of vibration or bit breakage. Always follow the manufacturer's guidelines and use caution when operating with extensions.In my shop I never use collet extensions because I don't want to take the chance of injury or destruction of my workpiece.
