Diamond Core Drill Bits (also known as Diamond Hole Sas) 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.
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.
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.
Perfect for handheld drills, drill presses, and water swivel setups. Always use with water for cooling and optimal results.