How Do You Drill A Glass Insulator?
Glass insulators have become obsolete for their intended purpose, with the introduction of more sophisticated technology and underground lines. They still exist in significant numbers, though, in antique stores and among collectors. Insulators can be used for light shades, suncatchers, salt and pepper shakers or other arts and crafts. Many of the crafts that use glass insulators require holes to be drilled in the glass, a specialized process that takes time and care. Use putty to make a circle, about 1/4-inch deep, around the area you intend to drill. Press the putty onto the glass. This needs to be watertight. Fill the putty “dam” with turpentine. This will help keep the bit from getting hot and will reduce chipping. Fit your drill with a glass-drilling bit (usually diamond or carbide) of the size you want the hole to be. You may be more successful if you use a small bit first, then work up to the size you want. This allows the bit to grind a bigger hole without putting extreme pressu
