Enhance your machining precision and efficiency with this high-quality Collet Chuck Extension Rod, crafted from durable 40CR carbon steel for exceptional stability and hardness. Designed for use in various turning, boring, and milling machine operations, this extension rod delivers ultra-high precision with a tolerance of 0.01mm, making it ideal for finishing tasks that demand accuracy. Key Features: · Premium 40CR Carbon Steel Material: Provides strong stability and high hardness, ensuring durability and reliable performance in demanding machining applications. · Ultra-High Precision: With a machining accuracy of 0.01mm, this extension rod is perfect for finishing processes requiring meticulous detail and consistency. · Straight Shank Extension Design: The UM-type structure facilitates deep cavity machining while maintaining rigidity and strength, reducing vibration and improving cutting quality. · Professional and Reasonable Structure: Engineered for easy installation and removal, boosting operational efficiency and minimizing downtime during tool changes. · High Operational Efficiency: Designed to reduce the need for additional extension tools, streamlining your machining setup and enhancing productivity. Specifications: · Material: 40CR Carbon Steel · Accuracy: 0.01mm · Length: 100L (100mm) · Optional Models (Shank Diameter - Collet Specifications - Length):  - C20-ER25UM-100L  - C25-ER25UM-100L  - C32-ER25UM-100L  - C40-ER25UM-100L Package Includes: · 1 x Collet Chuck Extension Rod This Collet Chuck Extension Rod is an essential tooling accessory for professional machinists and hobbyists seeking high precision and robust performance in turning, boring, and milling applications. Its sturdy 40CR construction combined with a refined design ensures reliable operation, long service life, and excellent machining outcomes. Upgrade your workshop with this precise and efficient extension rod to achieve superior machining results.