Found in a bin of stuff. Figured I might be able to adapt it to a 1/4" drive ratchet. (Having a 12" long homemade "Reechit" would be cool!). Female opening for bits on one end, 1/4" male hex drive on the other. Both magnetic. A bit big for tight spots, but then noticed the internal machining, and thought it might go to a specific powered drill or driver.
No logos or branding of any kind. Any ideas?