Things You'll Need
Diamond core drill bit
Drilling template with a hole the same size you need to drill
It is a good idea to wear safety glasses whenever using power tools.
Quartz countertops add an attractive and elegant touch to a kitchen or bathroom. Drilling a hole in a quartz countertop requires a specialized drill bit and a lot of patience. It's a job that cannot be rushed. Making a mistake when drilling a hole in a quartz countertop will be very expensive. By being patient and following the instructions, almost anyone can drill a hole in quartz countertops without a mishap.
Place the bucket beneath the countertop directly under where the hole will be drilled.
Put the drilling template on the countertop where the hole is to be.
Pour water into the hole in the template to lubricate the drill bit.
While holding the template in place, put the bit into the hole and begin drilling. Drill speed needs to be slow. Do not apply pressure, letting the drill work at its own pace. It is important that you pump the drill--lift the drill up so water can get under the bit where it makes contact with the counter top.
When the cut is about 1/4 inch deep, stop and remove the template.
Use the modeling clay to form a dam around the hole.
Fill the dammed in area half full with water. Keeping water in here will help keep the bit properly lubricated.
Continue drilling by pumping the drill and adding water as needed to keep the bit lubricated.
Reduce the pressure on the bit as you near the end of the hole. At this point you should be supporting the drill, letting it make only enough contact to cut the hole. Too much pressure at the end of the hole-drilling process will result in chipping and cracking the quartz countertop.
Mark Quest began his writing career in 2009, contributing to various online publications. He attended Asheville Buncombe Technical Community College, focusing on the sciences.