The COL CHK SS ER40, 1-1/4 X 2-3/8 is a high-quality stainless steel collet chuck, specifically designed for ER40 tool holders. With a diameter of 1-1/4 inches and a length of 2-3/8 inches, this collet ensures a strong and secure grip on cutting tools, enhancing machining accuracy. Its robust construction provides excellent resistance to wear and tear, making it suitable for demanding applications in CNC machining and other precision tasks. This collet chuck adheres to industry standards, ensuring reliability and safety in operation.