So i had some length of aluminum extrusion that i wanted cut and i went to a near by shop for it to be cut on a miter saw now the extrusions' ends aren't square and aren't the same length +0.5-1mm from one another. i really hate delegating stuff to others but unfortunately i don't have the tools :(. does anyone have suggestions on how to solve this ? i am okey with trimming up to 5mm as long as they match and squared.