Usage Tips:Versatile Tool Compatibility - The 5-piece collet set is designed to be a versatile addition to your tool collection, offering compatibility with a wide range of grinding machines and drill presses.The set includes collets in sizes 4mm, 6mm, 8mm, 10mm, and 12mm,ensuring that you have the right size for any project.Whether you're working on intricate carvings or precision drilling, these collets provide a secure and stable grip for your tools,enhancing the accuracy and efficiency of your work. Precision and Durability - Crafted from 65Mn, these collets are built to last and withstand the rigors of frequent use. The precision-engineered design ensures that each collet holds its shape and size, providing consistent and reliable performance. The right angled drill attachment feature allows for easy access to hard-to-reach areas, making it an indispensable tool for professionals and hobbyists alike. The drill press chuck upgrade capability makes this set a valuable addition to any tool post grinder attachment for lathe, offering a seamless upgrade to your existing equipment. Ease of Use and Maintenance - The U2 Sharpener Chuck Spring Clip Collet Grip is designed for ease of use, with a high-precision spindle taper clamp that ensures a secure hold on your tools. The spring clip mechanism allows for quick and easy tool changes, saving you time and effort. The collets are easy to clean and maintain, ensuring that they remain in top condition for prolonged use. Whether you're a professional or a DIY enthusiast, this collet set is an essential tool for anyone looking to enhance their grinding and carving capabilities. Product Type:Universal Tool Grinder U2 Drill Chucks Category:Tool Holder Design:Right Angled Drill Attachment Usage:Versatile for various grinding and carving tasks Quantity:5-piece set with sizes 4mm, 6mm, 8mm, 10mm, and 12mm Colour:As Shown Material:65Mn Package Contents: 1 * 4mm knife sharpener accessory chuck 1 * 6mm knife sharpener accessory chuck 1 * 8mm knife sharpener accessory chuck 1 * 10mm knife sharpener accessory chuck 1 * 12mm knife sharpener accessory chuck Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.