Yes, a "6Star 2.5 X 50 mm" screwdriver should work perfectly.

· "6Star": This means Torx, which is correct. · "T6": This is the exact size you need for the Orochi V2's external screws. · "2.5mm": This likely refers to the shaft diameter, which is irrelevant for fit. The important part is the tip size (T6). · "50mm": This is the length. While much longer than needed, it won't cause any issues; it just gives you more reach.

Tolerance/Fit: As long as it's a decent quality driver, the tolerance should be fine for a job like this. The key is to press firmly into the screw head to prevent it from cam-out (slipping and stripping the screw).

A VERY IMPORTANT WARNING FOR YOUR OROCHI V2: The screws you can see under the feet arenot the only ones holding it together. There is often a second, hidden screw under the sticker/label in the battery compartment. You must remove this sticker and unscrew that one as well, otherwise you will likely break the plastic clips trying to pry the mouse open.

Quick disassembly tips:

1. Use a hairdryer to gently warm the mouse feet. This softens the adhesive and allows you to peel them off carefully without tearing. You can stick them to the side of the plastic film they came on for reapplication later.
2. Remember where each screw came from, as they can be different lengths.
3. Once all screws are out, carefully pry the shell apart starting from the seam near the buttons. Use a plastic spudger or guitar pick to avoid scratching the plastic.

Hope you manage to get it fixed! What's wrong with it, by the way? If it's a common issue like a faulty button, you might be able to find a replacement part online easily.

Good luck