size of allen wrench (hex key) for P bass saddle height adjustment?

[Dano]

What's the size of the wrench that's used to adjust the saddle height on a MIM P bass? I've looked on the web, but can't seem to find the information (a Fender source says 1/16, but that's too small (works for strats, though)). There's a hardware store on the way to work that sells individual wrenches for way under a buck, so I'd like to avoid buying the whole home depot set, and if I don't have to take the bass into the store to try to find the right wrench, that'd be a plus.

Thanks.

 

[Dano]

1.5mm

Went to the h'ware store after work, and the clerk and I went through the hex bin, and 1.5mm worked the best. $0.49 out the door.