Electroplated Diamond Drill Bits 67mm – 5pcs Core Set for Glass & Ceramic

Diamond Core Drill Bits   (also known as Diamond Hole Saw) are the gold standard for precision drilling in ultra-hard materials like glass, stone, ceramics, and gemstones. Engineered  for durability and consistent performance, these drill bits are essential tools for lapidary  artisans , jewelers , and industrial professionals alike.

Precision Cutting Performance

Each bit features a diamond-coated cutting edge that enables clean, accurate holes with minimal chipping or cracking. Available in various diameters and shaft sizes, they’re compatible with a wide range of rotary tools, including Dremels, flex shafts, and drill presses .

Applications: Beads, Settings, Material Removal & More

Whether you're creating bead holes, mounting settings, or conducting detailed material removal, these core bits offer smooth drilling and long service life even in the toughest substrates.

Tool Compatibility & Cooling Requirements

Perfect for handheld drills, drill presses, and water swivel setups. Always use with water for cooling and optimal results.