- 1). Place the countertop as close to the final location as possible. A piece of granite with a hole in it is much more fragile than a solid piece. Avoid moving the granite after cutting.
- 2). Measure the desired hole. For a faucet, the hole should be a little larger than the faucet itself--1/8 to ¼ inch will work in most cases. The hole for a sink will depend on sink type. Make the hole for self-rimming sinks ½ inch smaller than the sink, or use the paper template that came with your sink. For undermount sinks, make the hole an additional ½ inch smaller at the corners. Cut holes for stovetops the same way as for undermount sinks. Mark the dimensions of the hole on the granite.
- 3). Practice making cuts, using your diamond hole saw or wet saw and diamond blade on pieces of granite scrap before you cut your counter. Don't touch the counter until you're confident about your ability to cut a smooth, straight hole.
- 4). Cut the granite along your chalk lines. Work slowly and hold the saw steady at all times. Keep the granite wet while cutting to reduce dust and heat. If you get tired, take a break--it reduces the chance of breaking your counter. If using a hole saw, cut the granite in one smooth motion.
- 5). Smooth the cuts. Rounded edges on sink cutouts will need to be smoothed and adjusted. Use a small hand-held grinder to even out rough spots and uneven curves. Work slowly to prevent damage. Clean and polish the cut area when finished.
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