The file 'Sanding Tool 3D Printer Model' is (stl,step) file type, size is 338.8KB.
Quick remix of the Sanding Tool by smatkala. Recessed area to get more purchase on the sandpaper and secure it. STEP File included to do what you like with it. You may have to adjust the nut dimensions depending on sandpaper used.
Edit: Updated version that works a bit better and follows the original design more.
Body.stl | 71.4KB | |
Bolt.stl | 642.2KB | |
Nut.stl | 252.8KB | |
Sander.step | 373.8KB |