Original Sphere Rotary Burr, 1⁄8" Shaft, Fine - Wood Carving Bit for Dremel, ...
Sphere - The Sphere Burr is the perfect option for when you need to hollow out a concave surface, or produce a radius. Need to produce an undercut or overhung edges?. This burr is the easy choice. Must use with 1/8" collet or adjustable chuck .