<p>ER40 collet is an ideal addition for CNC milling, lathe, work holding, engraving machine. </p><p>It features a premium spring steel body with strong stability, clamping force, and high accuracy, offering excellent performance in various machining applications, including boring, milling, reaming, tapping, and grinding. </p><p>Solid Construction High Performance </p><p>Convenient Installation Hassle-Free</p>