Do the collet chucks come with a collet, and do you sell collet sets?

Our collet chucks come with one standard collet included, which serves as a placeholder to keep the chuck ready for use. However, we do not supply ER collet sets at this time. Our collet chucks are fully compatible with standard off-the-shelf ER collets, which are widely available from various suppliers. You can easily find collet sets that fit your specific needs.