Dremel 430 1/4 Inch Drum Sanding Mandrel The product is 1/4 Drum Sander Easy to use The product is manufactured in China Ideal for rough-shaping and smoothing wood and fiberglass Removes rust from metal; shapes rubber surfaces Covered with aluminum oxide abrasive Features coarse 60-grit sanding Measures 1/4 inch in thickness; 1/8 inch diameter shank