FAQ's: Diamond Drills

For metals, carbide is better. For hard non-metals like glass or stone, diamond is superior.

Rinse in water to remove debris. For heavy buildup, scrub gently with a soft brush.

Yes, but they’re synthetic diamonds made for industrial use, not gemstones.

Not in the traditional sense, but you can expose fresh diamond grit by lightly drilling into a dressing stone or abrasive block.

Absolutely. They’re the preferred choice for clean, chip-free holes in glass.

Yes, especially for hard, brittle materials like glass, ceramic, tile, and stone.

For hardness, yes—diamonds are harder than any other cutting material. But they’re not always best for every material.

Yes—industrial-grade synthetic diamonds are bonded to the bit’s cutting surface.