If you don't have a specific spot for them, drill chuck keys tend to disappear, because every shop user has a different theory on where they should best be stored. I've seen chuck keys stored in the chuck, left in their slot in the chuck (What a terrible idea! Would you do this on a lathe? No! So, don't do it on a drill press either!), tied to the drill press with string or chain, left in a drawer among the drill bits, or just plain missing.
Magnets to the rescue! Smack a couple of rare earth magnets on the drill press and safely hang the chuck key. Magnets have this tendency to make people smile, so every time someone needs to use the chuck key and finds it magnetically hanging right in front of them, they'll be happy. This feeling of happiness will remind them to return the chuck key and continue the cycle of happiness.
Now, if only we could get the same thing to happen with vacuuming up the chips on the drill press...
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