I had some aluminum trim pieces and on the boat and I had them made up in Stainless but the person cut them about 1/2 too long. What is the best way to cut them down? The are about 16 guage stainless steel.
You can try a sawsall or a grinder..... The BEST option is to have them cut professionally during the week. I love stainless but it is a paint to work with ..... I have special carbide drill bits just for the holes.
If you do try cutting with a sawsall put a layer of tape over the cut so you do not scratch the piece.