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Glass core drill bits are designed to drill clean, accurate holes through brittle materials including glass, mirrors, ceramic tile, porcelain, stained glass, and decorative glass. Using industrial diamond cutting edges, these drill bits minimize chipping and cracking while producing smooth, professional-quality holes for fabrication, plumbing, electrical, and decorative applications.
Unlike conventional drill bits, diamond glass core bits grind through hard, brittle materials instead of cutting them. Electroplated and vacuum-brazed diamond technology delivers fast drilling speeds, extended tool life, and cleaner hole finishes when used with proper cooling.
Glass core drill bits are commonly used for:
Our collection includes several styles of diamond glass drill bits to suit different applications.
Vacuum-brazed diamond core bits provide aggressive cutting performance and longer life for demanding applications. They are excellent for thicker glass and multi-material drilling.
Electroplated bits offer excellent precision for thinner glass, mirrors, ceramic tile, and delicate materials while maintaining a smooth cutting finish.
Complete sets provide multiple diameters for fabricators, installers, contractors, and hobbyists who frequently drill various hole sizes.
These drill bits are suitable for drilling:
When selecting a glass drill bit, consider:
Vacuum-brazed bits are ideal for heavy-duty production work, while electroplated bits are an economical choice for precision drilling and occasional use.
For best results:
Our glass core drill bits are trusted by:
Yes. Diamond core drill bits are specifically designed to drill clean holes in glass with minimal chipping when used correctly.
Most glass drilling applications benefit from water cooling, which helps extend bit life, reduce heat, and improve hole quality.
Yes. Many glass core drill bits are also suitable for porcelain, ceramic tile, marble, and other hard, brittle materials.
Glass core drill bits are available in a wide range of diameters, from small holes for fasteners to larger openings for plumbing fixtures, electrical conduit, and hardware installations.
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Diamond Brazed Core Bits with Drill Shank
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Diamond Tool Store
Diamond Core bits for Glass, Tile, Porcelain, and Stone
Glass Core Drill Bits are specially designed to core through glass which is a brittle substance that can Easily Crack and chip. Most diamond drill bits for glass holes are made with vacuum brazing or electroplated brazing.
