Glass is a brittle material that is difficult to drill cleanly. Standard carbide-tipped bits will chip and crack glass windows, but diamond-tipped glass drilling bits can drill windows cleanly. By pointing a steady stream of water from a garden hose toward the hole being drilled, the bit will remain cool and lubricated, reducing the chance for cracking or chipping the glass.
Things You'll Need
- Diamond-tipped glass drilling bits
- Cordless drill
- 2 2-by-4 boards
- Garden hose
Place the two 2-by-4 boards on a flat, solid surface such as a driveway or sidewalk. Position the glass on top of the boards, with the spot to be drilled close to the edge of one of the boards.
Place the tip of the garden hose so that it is pointed directly at the spot where the hole is to be drilled. Turn on the water so that a small but steady stream of water is flowing over the spot to be drilled.
Install the diamond-tipped drill bit into a cordless drill. Set the drill's speed to low, and begin drilling the pilot hole at the desired spot. Drill as slowly as possible, applying little pressure to the bit.
Increase the drilling speed after the pilot hole begins to take shape. Increase the amount of water from the hose as the drilling speed increases.
Drill until the hole is completed. Carefully retract the drill bit from the hole.
Tips & Warnings
- To avoid the danger of using AC power and water on the same project, use a cordless drill instead of a corded power drill. Also, wear appropriate safety equipment, including safety glasses.
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