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Specialty Diamond GB1J Glass Grinding Bit 3/8 Inch X 100 Grit

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The Specialty Diamond GB1J Glass Grinding Bit (3/8" × 100 grit) is designed for fine shaping, smoothing, and edge finishing in glass, stained glass, tile, stone, and other hard materials. With its fine 100-grit surface, it delivers smoother finishes and precise control, making it well-suited for detailed work and refined edge preparation.The bit is made 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 for extended wear life and consistent results. Uniform diamond bonding minimizes chipping and helps protect delicate or thin materials during finishing.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 other major grinder systems.
$9.67
Model# GB1J
SKU
645710001789


  • Provides fine shaping and smoother finishes with a 100-grit surface for detailed grinding and edge preparation.
  • Extends tool life and ensures consistent results with a specialized bonding process that secures multiple layers of diamond.
  • Minimizes chipping and preserves delicate materials through uniform diamond bonding.
  • Handles fine shaping, smoothing, profiling, and finishing in glass, stained glass, tile, ceramics, stone, and other hard surfaces.
  • Withstands high RPM use with a durable one-piece brass body that resists cracking and deformation.
  • Delivers accurate results and improved control with a balanced, low-vibration design.
  • Specifications: Diameter: 3/8" (9.53 mm) | Grit: 100 (fine) | Shank/Arbor: 0.312" (7.92 mm) universal set screw mount | Material: One-piece brass body with embedded diamond layers | Compatibility: Inland grinders, WIZ series, Impulse, and other popular systems
  • Brand Speciality Diamond
    Model# GB1J
    CA Prop 65

    California Proposition 65