1/4" Shank - 1/2" Sphere Radius End EXTRA FINE. Head diameter 1/2", head length 1/2".

Saburrtooth rotary tools feature long-lasting, razor-sharp carbide cutting teeth arranged into a unique open pattern to resist "loading" while providing the "Power Carver" rapid stock removal and smoother finishes.

Not for use on METAL or CERAMICS.

Recommended Operating Speed: 4,000 to 25,000 RPM.