Enhance your precision drilling projects with this set of 20 high-quality Lapidary Drill Bits made from premium diamond powder. Designed for durability and precision, these drill bits deliver excellent performance on delicate and hard materials such as jewelry, ceramic, jade, agate, glass, amber, and semiconductor substrates. Ideal for professionals and hobbyists alike, they provide reliable and lasting sharpness to tackle intricate drilling tasks with ease. Key Features: · Premium Diamond Powder Construction: Crafted from high-quality diamond powder, these drill bits offer superior hardness and durability for precise and consistent drilling results. · Optimized for High-Speed Drilling: For best performance, use with drilling machines operating at speeds of 20,000 RPM or higher, ensuring clean and efficient hole drilling on hard materials. · Versatile Application: Perfect for drilling holes in jewelry, ceramics, jade, agate, glass, amber, and semiconductor materials, making them a versatile tool for various lapidary and craft projects. · Cooling Recommended: Use cold water during drilling operations to reduce heat and prolong bit life, enhancing safety and effectiveness. · Re-sharpenable Tips: When drill bits become dull after repeated use, simply trim the top with pliers to restore sharpness and extend usability. · Stable Operation: Maintain steady pressure and avoid shaking during drilling to achieve the best results and protect your workpieces and bits. Specifications: · Material: Diamond Powder · Color: Silver · Length: Approx. 36mm · Shank Diameter: 0.6mm · Head Diameter: 1mm · Weight: Approx. 4g each · Quantity: 20 Pieces Package Includes: · 20 x Lapidary Drill Bits This set of lapidary drill bits combines quality materials and thoughtful design to meet the demands of precise drilling on hard and fragile surfaces. Lightweight and easy to use, they are indispensable for jewelers, artisans, and DIY enthusiasts seeking clean, accurate holes with lasting tool performance.