Diamond Core Drills For Sapphire

Thin wall for minimizing stress and breakout.
Fine grit (200–400) → radius corners for less chipping
Carbide/cobalt metal matrix.
Longer tool life, free cutting for production drilling.
Suitable for large diameters and deep hole drilling in ceramic.
Require proper coolant to prevent glazing and overheating.

 

  Requirements for Ceramic Drilling

 

Coolant: Always use coolant through the drill to reduce heat and prevent cracks.
Speed: Run at moderate RPM (varies with drill size: small drills = higher RPM, large drills = lower RPM).
Feed Pressure: Light pressure—let the diamond cut. Excess force causes edge chipping.
Start Technique: Prevent drill from dancing on top of the material, use guides or a starter hole.
Wall Thickness: Thinner-walled drills reduce heat and improve cutting efficiency on sapphire
Coolant channels for continuous coolant flow.

 Applications for sapphire

Optical components (lenses, windows).
Watch crystals & jewels.
Semiconductor wafers.
Scientific and laser optics.

Call (480) 966-9311 or Add to Quote for pricing.