Gasket Mitre Shears 45 Degree A simple smooth cutting action enables this shear to cut neatly through gasket or small trims used in the PVC, Aluminium, Timber and Automotive Glazing Industry. A fast yet accurate means of cutting beads, trims and gasket around frames where a neat and professional finish is required. These shears enable you to make mitre cuts by means of the guide anvil attached to the cutting base.