Jewelry Grinder Bit Diamond Coated Copper Bit

Jewelry Grinder Bit Diamond Coated Copper Bit.

Use diamond jewelry bits to grind a groove around the outside of your fused cabachon for wire wrapping of beads, buttons and more
1.5 mm rim grinds a groove for 16 and 18 gauge wires
Fine Grit diamond for smooth, chip free grooves
Fits any machine with a 5/16" motor shaft.

Specifications

Rim Diameter: 1 inch
Shaft Diameter: 5/16 inch
Rim Heigth: 1.5 mm, suitable for 16 & 18 gauge wire