DIY Tutorial: Drilling Round Holes in Corian

Corian is a popular solid surface material used in various applications, including countertops, sinks, and other fixtures. While Corian offers numerous advantages such as durability, versatility, and easy maintenance, it can pose a challenge when it comes to drilling precise round holes. However, with the right tools and techniques, you can successfully drill round holes in Corian without compromising its integrity. This article provides a comprehensive step-by-step guide to help you accomplish this task with ease.

Diamond Drill Bit


How to Drill a Round Hole in Corian

To drill a round hole in Corian, follow these step-by-step instructions:

Step 1: Gather the Required Tools and Materials

Before you begin drilling into Corian, it’s essential to gather all the necessary tools and materials. Here’s a list of what you’ll need:

  • Corian sheet
  • Pencil or marker
  • Drill
  • Round hole saw bit(suitable for Corian)
  • Masking tape
  • Clamps
  • Safety goggles
  • Dust mask
  • Vacuum cleaner or shop vac

What Type of Drill Bit Should You Use for Corian?

When drilling into Corian, it’s important to use a drill bit that is specifically designed for this material. A carbide-tipped or diamond-tipped drill bit is recommended for Corian as they are harder and more resistant to wear. These drill bits provide better cutting performance and help reduce the risk of chipping or cracking the Corian surface.

Step 2: Measure and Mark the Hole

Start by determining the precise location and size of the hole you want to drill. Measure and mark the center point on the Corian surface using a pencil or marker. Ensure your markings are accurate and clearly visible.

Step 3: Secure the Corian Sheet

To prevent the Corian from chipping or splintering during the drilling process, it’s crucial to secure the sheet properly. Place the Corian sheet on a sturdy work surface and use clamps to hold it securely in place. This will minimize vibrations and ensure a clean hole.

Step 4: Apply Masking Tape

Cover the area around the marked hole with masking tape. This will provide extra protection to the Corian surface and reduce the chances of chipping or scratching. The tape also helps to prevent the drill bit from wandering during the initial stages of drilling.

What Speed Should the Drill Be Set to?

The speed at which you should set your drill depends on the diameter of the hole saw bit and the type of Corian you are drilling. As a general guideline, a slower drill speed is recommended for larger diameter hole saw bits and for denser types of Corian. This helps to prevent overheating and ensures better control during the drilling process. It’s best to consult the manufacturer’s recommendations for the specific hole saw bit and Corian type you are working with to determine the optimal drill speed.

Step 5: Put on Safety Gear

Drilling can produce dust and debris, so it’s important to protect yourself. Wear safety goggles to shield your eyes from any flying particles, and use a dust mask to prevent inhalation of fine dust. Safety should always be a priority when working with power tools.

Step 6: Start Drilling

Attach the round hole saw bit to your drill. Ensure that the bit is suitable for use with Corian. Set the drill to a moderate speed and begin drilling at a slight angle, making a shallow pilot hole on the marked spot. This will help to guide the hole saw bit and prevent it from slipping.

Step 7: Adjust the Drill Angle

Once you’ve created the pilot hole, adjust the drill to a perpendicular position and continue drilling. Apply gentle and consistent pressure to avoid excessive heat or pressure buildup, which can damage the Corian. Take breaks during the drilling process to allow the bit to cool down.

Step 8: Remove the Waste Material

As you drill deeper into the Corian, periodically stop and remove the waste material from the hole saw. This can be done by retracting the drill and using a vacuum cleaner or shop vac to extract the debris. Clearing the waste material will ensure smoother and more efficient drilling.

Step 9: Complete the Hole

Continue drilling until you reach the desired depth for the hole. Take your time and be patient to achieve a clean and precise cut. If necessary, use a file or sandpaper to smooth the edges of the hole after drilling is complete.

Step 10: Clean Up and Inspect

Once you have finished drilling the hole, remove the masking tape from the surrounding area. Inspect the hole for any rough edges or imperfections. If needed, use fine-grit sandpaper to smooth the edges further. Clean the surface of the Corian sheet to remove any dust or debris.



Drilling a round hole in Corian requires attention to detail, proper tools, and patience. By following the step-by-step guide outlined above, you can achieve precise and clean results without compromising the integrity of the material. Remember to prioritize safety by wearing the appropriate protective gear and working in a well-ventilated area. With practice, you’ll become proficient in drilling round holes in Corian and be able to undertake various DIY projects or professional installations with confidence.


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