12 TKM 3710 Printing Top Slitter Blades Knives 3.0000 1.6260 0.0620. Condition is "Used" in need of sharping. They have been sharpened previous and are approximately 2.90" instead of 3.0". Heidelberg Goss wp.5378646. Made of carbon tool steel, single bevel w 4 mounting holes.