Enhance your drilling projects with this premium Diamond Coated Core Drill Bit set, designed to effortlessly cut precise, complete circles through tough materials such as glass, tiles, marble, granite, and ceramic. Engineered with a high-hardness diamond coating on a durable metal core, these drill bits deliver exceptional wear resistance and long-lasting performance, making them ideal for both professional and DIY applications. Key Features: · Precision Diamond Coated Core: Provides clean, accurate circular cuts on hard surfaces like glass, ceramic, marble, granite, and tiles, ensuring smooth edges and professional results. · Multiple Sizes Included: Comes with a variety of drill bit sizes to accommodate different hole diameters, offering versatility for a wide range of projects. · Premium Metal Construction: Made from high-quality metal with diamond coating for superior hardness and durability, resisting wear even under heavy use. · Easy to Use: Start drilling at a diagonal angle to create a round trace, then hold the drill straight for efficient and controlled cutting. · Water Lubrication Required: Designed to be used with water as a lubricant to prevent overheating and prolong the lifespan of the drill bits. · Compatible with Standard Electric Drills: Suitable for use with most electric drills, making it convenient and adaptable for various tools. Specifications: · Material: Premium metal with diamond coating · Application: Glass, tiles, marble, granite, ceramic, and other hard materials · Usage: Requires water lubrication during operation Package Includes: · Diamond Coated Core Drill Bits (various sizes) Please note: The product may be shipped as either the new or old version randomly. Ensure this is acceptable before placing your order. This diamond coated core drill bit set is an essential tool for anyone needing precise, clean holes in hard materials. Its durable construction, ease of use, and versatility make it perfect for home improvement, renovation, and professional projects.