The 10N21 copper collet is expertly designed to accommodate tools or electrodes with a diameter of .020" (.5 mm), ensuring a precise and secure fit. Crafted from high-qualitycopper, this collet offers superior durability and resistance to corrosion, making it a reliable choice for a wide range of applications. The precision manufacturing of this collet guarantees a stable grip, minimizing slippage and promoting accuracy in your work. Choose our brass collets for a blend of versatility, longevity, and precision that is unmatched.