This diamond jewelry bit grinds a groove around the outside of glass, cabochons, beads, buttons and similar material for wire wrapping. Choose from two different thicknesses, both in 220# diamond grit for smooth, chip-free grooves.
This diamond jewelry bit is essential for grinding grooves around the outside of glass, cabochons, beads, buttons and similar material for wire wrapping. Jewelry bits are available in two different thicknesses, 1 mm and 1.4 mm, and come with a set-screw, Allen wrench and square-shaped sponge to keep your glass piece cool while you work.
- All bits are measured for trueness, which insures that every bit will spin properly on the motor shaft
- These bits fit 5/16" (7.94 mm) arbors
- Outer diameter: 1" (rim)
- Inner diameter: 5/16"
- Steel body
- 1 mm rim grinds a groove for 20 and 22 gauge wires; 1.4 mm rim grinds a groove for 16 and 18 gauge wires