Amazon.com: Shop Fox D4594 Hand-Held Pneumatic Drum Sander, 4" x 1-1/8" : Tools & Home Improvement
NTT a handheld drill drum sander. One end attaches to the drill. The other (the red side) is a handle with bearings. Works great for shaping edges etc! : r/Tools
Shop Fox D4595 Hand-Held Pneumatic Drum Sander, 7-1/2" x 2-1/4" | eBay