Diamond Carver #504, Ball

Diamond Carvers are the most durable, lasting up to 5 times as long as rubies. They can be used on wood, some plastics, many metals and soft stones (e.g. Soapstone). They will also carve glass. Fairly fine grit.

1/4" head diameter, 3/32" shank and 1-3/4" long.

25,000 RPM Maximum Speed.