Sanding Mops are the fastest way to produce a good finish on rounded surfaces such as walking sticks, canes and wooden spoons. The multiple layers of long lasting sandpaper slightly conform to your project and allows you to control the rate of sanding. The 4" Sanding Mops have a 1/4" shank for use in a variable speed drill or drill press. Recommended 1700-3100RPM (max 4000rpm). See just how easy sanding can be.