we've all been there.  your axle comes loose or your cuffbolt falls out and you didn't bring any allen keys.  with the qol brand socket tool you will never be without an allen again, as this powerful little bit driver hangs out on your keychain waiting to save the day.  can be used instead with a 2" bit to reach frame bolts.

pairs nicely with #20 t25 bits, #15 carabiner, #14 keychains