Multi-tool Compatibility - This five-piece chuck set is designed to be a versatile addition to your toolbox, compatible with a wide range of grinders and drills. The set includes chucks in five sizes: 4mm, 6mm, 8mm, 10mm, and 12mm, ensuring you have the right size for any project. Whether you're doing fine engraving or precision drilling, these chucks provide a secure and stable grip for your tools, improving accuracy and efficiency.Precision and Durability - Constructed from 65Mn steel, these chucks are durable and can withstand frequent use. Precision engineering ensures that each chuck maintains its shape and dimensions, providing consistent reliability.The right-angle drill attachment design allows easy access to hard-to-reach areas, making it an essential tool for professionals and hobbyists alike. This drill chuck upgrade kit is a valuable addition to lathe tool post and grinder attachments, providing a seamless upgrade to your existing equipment. Easy to Use and Maintain - The U2 Grinding Chuck's spring-loaded collet is designed for ease of use, and its high-precision spindle taper clamping mechanism ensures a secure grip on your tools. The spring-loaded mechanism allows for quick and easy tool changes, saving you time and effort.The chuck is easy to clean and maintain, ensuring it remains in optimal condition for long-term use. Whether you are a professional craftsman or a DIY enthusiast, this chuck set is an essential tool for enhancing your grinding and engraving abilities.Product Type: Universal Tool Grinder U2 Drill ChuckCategory: Tool ClampsDesign: Right Angle Drill ChuckApplication: Suitable for various grinding and engraving tasksQuantity: 5-piece set, sizes 4mm, 6mm, 8mm, 10mm, and 12mmColor: As shown in the pictureMaterial: 65MnPackage Contents: 5PCS (one pc of each size)