DIY Keyring Bit Driver

If you find yourself constantly needing a bit driver, you can build a keyring version by adding a magnetic bit driver designed to be used with a power drill to a carabiner keyring. Simply attach a nut large enough to fit the carabiner to the end of the magnetic bit driver with a little JB Weld.

Instructables user uglymike figured out the method to attach a magnetic bit holder to a carabiner keychain. Once that's done, just add a set of keychain driver bits that are available at most hardware stores and you'll always be ready to tighten or loosen a screw.

Build a D-Ring Bit driver [Instructables]


    looks to me that your torque is limited to the strength of the JB weld. the carabiner functions as a t-piece handle and I'd assume the jb weld would give way before bending the cast metal.

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