- Unique set of all-spherical grinding bits for Dermal-type rotary tools in durable storage case
- Assorted heads diameter: 3/16" to 5/16"
- 1/8" shank
- Diamond bits are favored for use with glass, tile, stone and hardened metals
- Excellent for carving, engraving, forming, drilling and filing/material removal
- Part #82310DD