The revolutionary patented cup bur design. The Champion Cup has NO inner blades, instead it has two slotted opening around the bur. The Champion Cup bur is ideal for jewelers who finish prongs on a continuous basis. It will produce the desired result much faster.
- Eliminates additional polishing
- Produces a much smoother surface
- No clogging on softer metals
- Will outlast other cup burs
- Easy to clean