Diamond Hollow Drill Bits 1.0mm, 10pcs – Perfect for Stone, Glass & Ceramics

The Diamond Wire Hollow Core Drill Bit is a precision tool designed for drilling clean, chip-free holes in hard and delicate materials such as glass, stone, tile, porcelain, composites, resins, and even fragile objects like eggshells. Featuring a diamond-coated tip, it grinds rather than shears material, providing smooth, ready-to-use holes without secondary finishing. Ideal for lapidary work, jewelry making, tile installation, and crafts, these core drill bits are compatible with handheld rotary tools (small sizes 1–6mm) and drill presses (larger sizes 6mm+). The diamond coating ensures long-lasting durability, while the hollow- core design preserves material when possible and allows for faster cutting. Use with water or cutting oil, low speed, and light pressure to maximize performance and lifespan. Perfect for  professionals and hobbyists seeking precision, versatility, and clean, accurate drilling in brittle or hard materials.These versatile tools can drill through a wide range of materials, including:

• Stone

• Glass

• Tile

• Composites

• Plastics

• Resins

• Porcelain

• Even delicate materials like eggs!