- Cost: $8 per hole drilled
- 1” Max on thickness.
- It must be a flat surface and no angle drilling.
- 4mm & smaller holes -- Rock larger than the palm of your hand & no thicker than 1”
- Rocks and Stones larger than palm size require larger holes, 1/8" - 1/2" in diameter.
- Crystals need one (1) flat face, no or very few fractures, & a fully exposed surface.