Bosch Glass & Tile Drill Bit 5/16 in.

The Bosch GT400 Glass & Tile Drill Bit delivers precision and durability for your most demanding tile and glass projects. Engineered with a carbide tip and reinforced head, this specialty bit starts on contact without walking or skating—no center punch required. Its three-flat shank design ensures superior grip in the drill chuck, while innovative geometry and precision-ground tips provide fast, clean holes in ceramic, porcelain and glass surfaces.

Whether you’re installing bathroom fixtures, running plumbing lines or working on decorative glass, this bit offers long life and consistent performance.

Key Features

• Three-flat shank provides superior grip and reduces slippage
• Reinforced, carbide-tipped head maximizes bit life
• Precision-ground tip prevents “walking” for accurate starts
• Innovative bit geometry for faster drilling in hard materials
• Ideal for dry drilling—no water needed