window tint edge trimmer

used to trim window tint. you must supply a general purpose utility knife blade and 2 m3 screws. there are 3 measurements on the file names. those measurements will be the distance from the edge of the glass to the edge of the tint.
the 4mm uses m3*6 screws
the 3mm uses m3*5 screws
the 2mm uses m3*4 screws
those screw lengths are for the ends of the screws to be flush on the back. i find they thread into the pla and hold fairly well. you could go with longer screws and nuts on the backside if you wanted.