My very old drill was used to become my disk sander. Mounted under the table with a sanding wheel velcro attachment and a sanding table makes perfect job.
With the help of a friend we rewired the drill’s electrical functions and put everything in an electrical socket box. On and Off switch - Forward and reverse - Fast and Slow fixed speed - adjustable speed control, all functions run smoothly and it’s so handy (see picture below).
The sander’s table is attached with two threaded inserts on the tool-bench, bolds and wing nuts through the table to tighten it to the bench.
The sanding table has several functions, one is the use of a simple T-square for parallel sanding, has an angle guide for sanding miters and a circle sanding jig attachment for cutting perfect circles from very small ones up to 12 inches (30cm) diameter circles.
Thank you
Michael
CCW = counterclockwise