Uses of Miter Jig

I just purchased the Rio miter jig and want to make as much use as
possible. I am aware of the uses for filing squared wire/strip/tube
for easier soldering. I am not clear on how it is used for scoring
and helping make bends for box construction. I know you should not
use good files–what is recommended. I used a 0 cross cut
bastard–it is marking the tool up–hope that is OK.

I would love to hear of other uses. Thanks,