Review on 💎 Diamond Hole Drill: Perfect for Granite and Glass Surfaces by Brian Potter

It worked. I was able to drill a thin hole in 1/2" thick kitchen granite. Just drill directly into the granite instead of gripping it with masking tape. Using masking tape as a grip can cause the drill bit to move out of position. I used plasticine to make a water dam to keep the drill bit cool while I made the hole. Be patient and make sure the drill bit penetrates the granite. I was wondering how the smooth surface going in would hold the drill in place but it worked like a charm 5 stars I only need this once so can't comment on reliability or a reusable scenario.