PRECISION: Features Bosch’s unique product design with a precision tip to help solve any bit wandering or bit walking QUALITY: This glass and tile set includes a high-quality carbide tip with a reinforced head to reduce stress, prevent bit cracking and the diamond ground cutting edges provide a longer life VERSATILE: Perfect for common applications such as relief holes for glass cutting, bathroom and shower installs, drilling and fastening mirrors, setting concrete screws in tile and many more RELIABLE: The three flat shank provides superior grip on 5/16 in. bits and larger to prevent slippage. The Bosch Glass & Tile bits are easy to use while still providing best-in-class speed so you can get the job done faster NNOVATIVE: Featuring the Bosch branded, innovative geometry allows bits to drill faster. Each bit is clearly labeled so you can select the correct fit for the task VERSATILE: Engineered for use in standard, glass, and other hard to drill specialty tiles