Socket adapter/converter holder
thingiverse
Made this because those converters usually get lost everywhere... Now i have them on my tools wall in the garage. Sizes on the holder is: 1. 1/4" 2. 3/8" 3. 3/8" 4. 1/2" But should be easy to modify for your own needs if needed. Printed mine in 30% infill and that is more than enough.
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