Specialty Diamond GB1B Glass Grinding Bit 1/8 Inch X 120 Grit

The Specialty Diamond GB1B Glass Grinding Bit (1/8" × 120 grit) is designed for precision grinding on glass, stained glass, tile, stone, and other hard materials. It delivers reliable performance for stock removal, shaping, profiling, edge smoothing, and hole refinement. The bit is built from a single-piece brass body that resists fatigue cracking during high RPM use and vibration. A specialized bonding process secures multiple layers of diamond to extend tool life and maintain consistent cutting results. Uniform diamond bonding reduces chipping and provides better control when working with delicate or thin materials. This bit mounts with a universal arbor and set screw design that fits 0.312" (7.92 mm) spindles, making it compatible with Inland grinders, WIZ, Super WIZ, Wizling CG, Wizard IV, Impulse, WIZ CG, and similar systems.