Ultra thin and sharp carbon steel blades by NT Cutter are the best for trimming the top edge of your tint pattern. The thin blades helps prevent snagging the film for a perfect clean cut. 50 blades per pack. Model - BA-54P
This razor knife cuts the tint so fast and perfectly.
These are a game changer for those top edges.
Very nice for shaving windows. Use them on Tesla and every frameless windows.