The hard nature of quartz limits the types of drill bits that can drill a hole through the material. Normal metal drill bits will dull when touched to the surface of a quartz crystal. This remains true even with cobalt, titanium coated and other drill bits designed for hard materials. One type of drill bit will create a hole in a quartz crystal without dulling. Even with the correct drill bit, friction between the drill bit and the crystal will cause fractions in the crystal. Limiting friction will decrease heat build-up and keep the quartz crystal from breaking.
- Skill level:
Things you need
- Wood vice
- Wet rag
- Diamond drill bit
- Variable speed drill
Clamp a quartz crystal in the jaws of a wood vice with the side needing the hole facing the top of the vice jaws. Push down on the top face of the crystal. Ensure the crystal does not move. Tighten the vice if it moves under pressure.
Set a wet rag on one of the vice jaws. Allow the water from the rag to drip on the top surface of the crystal.
Secure a diamond drill bit in a variable speed drill. Align the bit with the location requiring the hole.
Pull the trigger of the variable speed drill motor slowly until the bit begins to spin. Keep downward pressure on the drill as the bit slowly drills into the quartz crystal. Stop drilling when the tip of the drill bit sits roughly halfway in the crystal.
Loosen the jaws of the wood vice. Turn the quartz crystal to place the face of the crystal with the hole facing the inside of the vice. Tighten the wood vice to hole the crystal in place.
Adjust the wet rag to drip water on the exposed face of the crystal. Repeat the drilling process until the diamond drill reaches the first hole drilled in the crystal. Loosen the vice jaws to remove the drilled crystal from the vice.
Tips and warnings
- Protect your eyes with safety glasses when drilling quartz crystal.
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