G8749 Drum / Flap Sander A great addition to any shop needing to shape and finish contours. The G8749 Drum / Flap Sander is generally used for edge contour sanding using the sanding drum or for round or spherical sanding using the flap sander. On one side, choose between the included 3-1/4 in. Dia or 4-3/4 in. Dia inflatable sanding drums. On the other is a 10-1/2 in. Dia x 7-3/4 in. L flap sander with twelve abrasive flaps backed up by flexible bristle brushes. Order replacement flap sandpaper in 6 in. W rolls in the grit of your choice. Like all Grizzly sanders, the G8749 comes with a 1-year warranty which covers parts and assures the unit is free from factory defects. SPECIFICATIONS: Motor 1 HP, 110-Volt, single-phase, 10 Amp Arbor: 22 mm Inflatable drum sizes: 3-1/4 in. x 7-7/8 in., 4-3/4 in. x 7-7/8 in. Footprint: 6-1/2 in. x 9 in.