I'm not sure of the thickness of your Ti foil and that probably would make a difference [comparing apples to apples...]. What worked for us on the Ti foil we purchased from Titanium Goat was the following [and it worked like charm]: using the 9/32" [7.14mm] die on a metal power punch kit. This is the type of heavy-duty hand tool used by sheet metal fabicators. We also had to cut our foil to the proper length for our set up and used standard new Fiskars shears for this. To dull the cut edge we used a 3M "Sandblaster" Sanding Sponge [course 60 grit] and it seems to have worked -- no sharp edges [though, just to be "not dumb," we'll handle it thinking that it just could be sharper than your average loaf of bread!].