Cutting aluminum trim question.

Hi I have a question about cutting the aluminum trim that goes on the top, sides, back, table ex...
I made a cantilevered table to attach to the galley table for my wife. Put Formica on top and trimmed it with aluminum. I needed to make 45Dig. cuts. I have a miter saw and miter box but its a little big for the trim.
Id sure like to make cleaner cuts. What are you guys using to make cuts on 3/4 aluminum sides and table trim?
Thanks
Dano
I made a cantilevered table to attach to the galley table for my wife. Put Formica on top and trimmed it with aluminum. I needed to make 45Dig. cuts. I have a miter saw and miter box but its a little big for the trim.
Id sure like to make cleaner cuts. What are you guys using to make cuts on 3/4 aluminum sides and table trim?
Thanks
Dano