How to Drill Glazed Pottery

The format for drilling glazed pottery follows the same steps as if you were to drill porcelain or ceramic tiles. Maybe you have a glazed pottery planter that needs water drainage holes in the bottom or some glazed pottery tiles to be drilled through or plates to be hung up, just follow these simple steps…

What You Will need:

  • Small Diamond Core drill bits, you will probably want sizes somewhere between 3.5mm – 8mm (often referred to as Diamond Hole Saw Drills)
  • Sponge and bowl of water
  • Masking tape
  • Safety goggles

Medium Diamond Core Drills 3.5mm - 10mm

Step 1

Mark the position of where you require the hole to be with a marker pen and place a strip of masking tape over the top. When you begin to drill the masking tape will help prevent any skittering across the surface of your glazed pottery.

Step 2

Soak your sponge in water (keeping a bowl of water to hand in order to top up) and place directly next to your intended drill hole. The purpose of using a lubricant such as water is to ensure the material and your drill bit do not overheat which can cause your material to crack and will shorten the life of your drill bit.

Step 3

Start the drill, somewhere between 1000 and 1500 rpm and angle your drill on the masking tape to begin the drilling whilst at the same time squeezing water from your sponge directly onto the drilling process. The angling of the drill will again help to prevent any skittering across the surface. As soon as you begin to cut into the glazed pottery return your drill to its normal vertical position and continue to drill through, slow to begin with and with little pressure, too much and you may break the pottery.

For further help, you might also like to read our article:12 Things you Should Know about Diamond Drill Bits