Measure the stone to determine where the hole should be drilled.
Place the masonry drill bit into the impact drill and tighten it. It needs to be firmly secured in the drill. Impact drills vibrate because they also use a pounding motion to penetrate the stone.
Pour a small amount of water on the area you are going to drill. Place the drill on the location where the hole will be made and squeeze the trigger on the drill. Make sure you are holding the drill tightly since it will vibrate.
Drill into the stone. As you are drilling stop periodically and pour more water on the stone. This will clean the hole as well as reduce the amount of dust.