Here's a review and comparison of Harbor Freights new and kind of expensive 1in bit compatible locking magnetic holders they are pretty nicely built but I think they have an Achilles heel which may mean the locking mechanism may not last particularly long. They sings are handy because they retain the one in bits and a physical manner so they don't get stuck in a screw
Bauer 1881A-B10, 64774
Hercules HA22-59, 64763
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