Stripped micro screw (countersunk); need ideas on how to remove.

Stripped micro screw (countersunk); need ideas on how to remove.

I have a ZT (Zero Tolerance) model 0808 folding pocketknife that has a stripped TORX head screw (originally T-6 bit), one of four that's used to hold the metal grip panels onto its internal frame structure. The screw is extremely small (thread size unknown; ZT so far won't tell me that info), and is set into a countersunk pocket in the grip.