positioning the first side of the overlap region adjacent a die assembly having a central axis, a die face normal to the axis and a die recess having a plurality of generally vertical walls forming {HEAD ~ a plurality} of {TAIL ~ sharp cutting edges} at the intersection of the die face and the walls, said walls being spaced apart and securely connected so as to prevent relative movement therebetween 
positioning the first side of the overlap region adjacent a die assembly having a central axis , a die face normal to the axis and a die recess having a plurality of generally vertical walls forming { HEAD ~ a plurality } of { TAIL ~ sharp cutting edges } at the intersection of the die face and the walls , said walls being spaced apart and securely connected so as to prevent relative movement therebetween
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