This is Dremel's 1/2" Drum Sander Accessory Bit.
A cylinder covered with aluminum oxide abrasive that sits atop a
The band covering the cylinder is coarse 60-grit.
The band is replaceable.
Ideal for rough-shaping and smoothing wood and fiberglass; as well
as removing rust from metal surfaces, shaping rubber surfaces, furniture refinishing, and more.
Sand inside curves.