Among the different types of chucks included in this kit, milling collet chucks are extremely versatile. They utilize collet chuck kits to hold various shank sizes, allowing quick and easy tool changes. The precise clamping mechanism of the collet ensures a secure clamp, eliminates the risk of tool slippage and maximizes machining accuracy. Also, we have other milling chuck sets, such as plastic box sets,wooden box sets, etc.. Some sets also support customization service, you can choose each model you need to add to the set by yourself. You can contact us if you need.