Diamond Core Drills For Sapphire
Metal Bond Diamond Core Drills are preferred for drilling 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.
