The COL ER(664) ER40 collet is specifically designed for 1 inch tooling, offering exceptional grip and stability for precision machining tasks. Constructed from premium materials, this collet is built to withstand rigorous use in industrial environments. Its ER40 compatibility allows for easy integration with a variety of milling machines and CNC equipment. With precise dimensions, this collet minimizes tool vibration and enhances accuracy, making it an essential component for any machining setup. Compliant with industry standards, it ensures reliable performance and longevity.