Check out this wacky little innovation. Ever busted a string on a guitar with a Floyd Rose trem, and been unable to locate an allen wrench to fix it? A company called Strociek has designed the TurboTrem series of replacement whammy bars based on several popular models, with a hidden feature: a 3mm allen wrench built into the base of the bar. Now if you pop a string, just remove the whammy bar and use the screw/push-in end as an allen wrench. Genius!
Strociek currently offers 3 models of TurboTrem: threaded, collared, and pop-in. The company says the TurboTrem is compatible with any Kahler tremolo system and all original and licensed Floyd Rose single and double locking tremolo systems, such as the Ibanez Edge series, Schaller, Gotoh, ESP, Peavey, Jackson and Charvel and more.