Stone cup wheel

Perfect for buffing work on any type of natural stone, especially granite and marble, and cured concrete surfaces.

4 in. diameter.

The RUBI diamond burr is perfectly compatible with portable electrical grinders and polishers for both wet and dry work.

With a 5/8" thread for direct connection to practically any electric grinder or polisher on the market.

The RUBI diamond burr works at a maximum speed of 15,000 rpm.

RUBI uses high quality diamond in all its diamond tools, ensuring the proper...