fender usa strat

What size allen wrench fits a Fender Stratocaster (access head) of the soul?
I'm trying to find in the UK for me U.S. home but as usual little Fender information anywhere on the bar armor guitars.Even keys at the site of Fender! Thanks for the replies.
Hello! Fender uses a 1 / 8 "(3.18mm) hex truss rod adjustment. Stewart-MacDonald has a very nice key available for this purpose, must be willing to spend a little more (see http://www.stewmac.com/shop/Truss_rods/Wrenches, _hex_keys / Allen_Truss_Rod_Wrenches.html). Indeed, the size adjustment saddle is difficult for 050 (1.27mm) hex wrench, since you are having to find the details of the tool (see http://www.fender.com/support/stratocaster.php specifications for adjustment). Best Regards, Dana
Audition f/Mutt Lange/John Rich…(Fender USA Strat Demo)