Type and Durability: Each core drill bit in this set is crafted from high-quality materials, ensuring long-lasting durability and efficiency. The bits range from 6mm to 50mm, allowing for a variety of hole sizes for different applications, making it a versatile tool for multiple projects. Customization and Usage: Tailored to meet diverse drilling needs, this set is customizable and suitable for a wide range of applications. Whether you're dealing with glass, tile, or marble, these drill bits provide smooth and precise drilling, minimizing the risk of breakage. Compatibility: Specifically designed for plumbing and other intricate drilling needs, this 15-piece diamonds glass drill set is perfect for professionals and home DIY enthusiasts alike. The robust design ensures in drilling through hard materials like tile, marble, and ceramics. Length and Packaging: The set includes 15 pieces of hole saw drills, each meticulously designed for optimal performance. The compact and secure packaging ensures that the bits are well-protected and easy to store, making them ideal for both professional and personal use., Manufacturer: Aundhegrtt