1mm Coated Lapidary Drill Bits, 20 Pieces, Needle Drill Bits

[PRECISION COATING] Made from powder, these lapidary drill bits offer exceptional precision and durability for your complex drilling projects. The solid needle design ensures consistent performance even on the hardest materials like agate, jade, and ceramic. Each bit retains its sharpness through multiple uses, and if necessary, you can easily sharpen the tip with pliers to restore its edge. [HIGH-SPEED OPTIMIZATION] For best results, run your drill at speeds of 20,000 RPM or higher. The higher the rotational speed, the more efficient and cleaner the drilling action becomes. This optimized speed range allows the coating to work effectively on challenging surfaces, reducing effort and improving hole quality in every application. [WATER COOLING REQUIRED] Always use cold water during drilling operations to prevent overheating and extend the life of your drill bits. The cooling system by Water reduces friction, dissipates heat, and keeps the coating intact, ensuring consistent performance. This simple step protects both your materials and the bits themselves from thermal damage. [PACKAGE INCLUDES 20 PIECES] You will receive 20 individually coated lapidary drill bits, each 36 mm long with a 1 mm head diameter and a 0.6 mm shank. This generous quantity ensures you have spares for multiple projects or replacements. The silver-colored bits are lightweight and offer easy handling and precise control during detailed drilling work. [VERSATILE MATERIAL COMPATIBILITY] These bits are perfect for creating holes in jewelry, ceramic items, jade, agate, glass, amber, and semiconductor materials. Whether you are a professional jeweler, a lapidary enthusiast, or a hobbyist, these bits provide reliable results on a wide range of hard and brittle, which makes it an essential tool for your workshop.