How can drainage holes in marble outdoor planters be added without causing cracks?

Adding drainage holes to marble outdoor planters is essential for plant health, but it requires careful execution to avoid cracks. Here’s a step-by-step guide:

1. Choose the Right Tools: Use a diamond-tipped drill bit designed for stone or marble. Standard bits can cause fractures.

2. Mark the Spot: Lightly mark the drilling location with a pencil. Avoid edges or thin areas of the planter.

3. Start Slowly: Begin drilling at a low speed with light pressure. Keep the drill perpendicular to the surface.

4. Use Water as Lubricant: Continuously spray water to cool the marble and reduce dust. This prevents overheating and cracking.

5. Increase Speed Gradually: Once a groove forms, slightly increase speed while maintaining steady pressure.

By following these steps, you can create clean drainage holes without damaging your marble planter. Always wear safety goggles and work on a stable surface for best results.