Anyone know what size hex key is needed for the saddles on a Fender US original style strat bridge? I wanna raise the action just a hair on my Hwy. 1 Strat and the hex key i have came with the first strat i ever owned, which was a Mexican model i had about 8 years ago. The one i got with the Mex strat back then is about a size larger than what i need..... anyone know what size i need???