hehe i thought the same thing..... at first. the RC10GT has a 5/64ths cap screw as the trust bolt in the diff. i thought i was screwed until i realized the 2.0mm driver is the same size
im pretty sure its not PERFECT, but its close enough that ive put MAD torque on it and never stripped a screw head. im willing it bet the metric conversion is dead on.
yep, 5/64ths comes out to roughly .0781 inches. 2.0mm comes out to 0.0787. thats pretty edit
you should have no probs using a 2.0mm wrench on a 5/64ths screw head.