I just got my first set of Sportsmatch rings (T02C) and have a question. The unmarked hex wrench they supplied fits the ring screws nice and tight. However, as I want to torque them properly, the best fit in the bits supplied in my Wheeler Fat Wrench set is marked 7/64. This one fits so loose I’m afraid I’ll strip the screw. I then went to my Chapman driver set and the best fit was a bit labeled 7. This one also fit fairly loose. Crazy question but does anyone know if the Sportsmatch screws are metric or US. As this is a new set I’m sure that the screws have not been stripped but I can’t find a bit that fits like the supplied Sportsmatch wrench. I can always just use that one but I’d like to torque them properly. Any ideas or suggestions? Thanks