Metzenbaum scissors Straight 6”: Surgical scissors designed for cutting delicate tissue and blunt dissection. The scissors come in variable lengths and have a relatively long shank-to-blade ratio. They are constructed of stainless steel. Blades are Straight. The blade tips are blunt. This is most common in organ operations. It is also used in heart operations. Metzenbaum scissors are more delicate than Mayo scissors. Metzenbaum scissors are used to cut delicate tissues. Metzenbaum scissors have a longer handle to blade ratio.