Double Ended Keychain Screwdriver / bit driver
thingiverse
I saw AntonFalck's design and wanted to add my own twist by lengthening the holder. I printed off a bunch of his version for Christmas Eve gifts, and everyone loved them, but they wanted the ability to have both a Phillips head and Flat head together right away. I really liked the knurling in the original, and this gave me a chance to learn how it's done in Fusion 360! With both bits now available, most screws can be easily opened from your keychain fob with just one click. I had a tough time finding bulk packages of affordable bits, but I finally found them on Amazon (US) for a reasonable price.
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