- Versatile Compatibility: The ER20 adapter chuck is designed to work seamlessly with M2-M16 taps, making it an essential tool for a wide range of applications in workshops and factories. Whether you're working on CNC lathes or other threading tasks, this chuck meets various threading needs. - Exceptional Durability: Constructed from high-quality 20CrMrTi steel, this telescopic thread die chuck undergoes carburizing and heat treatment processes to enhance its wear resistance and stability. Enjoy long-lasting performance and reliability in your threading operations. - User-Centric Design: The ER20 floating thread chuck holder features a unique floating and retractable design, allowing for smooth operation. It offers 5 mm of floating movement in the front and 6 mm in the back, providing optimal comfort and ease during use. - Adjustable Protection: The holder's extendable and contracting functionality during thread processing not only improves tap performance but also extends the service life of your tools. This adjustability helps mitigate wear and tear, ensuring better results. - Practical Applications: Ideal for precision threading in metalworking shops, automotive repairs, and manufacturing processes, this chuck holder enhances efficiency and accuracy. Use it for creating threads in various materials, from steel to aluminum, to achieve professional-grade results. - Reliable Performance: Trust in a product that combines robust construction with innovative design features, ensuring that your threading tasks are completed with precision and ease.