- Drill holes in both flat and contoured glass
- Diamond-impregnated cutting bit for long life
- Diamond grit around the circumference of the bit allows it to rasp a larger hole if needed
- Holes on the side of the bit allow the removal of material
- Ideal for decorative projects including glass blocks or bottles
- Flapwheels grind and polish flat or contoured surfaces
- Overall Length: 2.75 in.