Hollow chop orthodontic pliers are used for reshaping and contouring archwires and forming palatal arches. The tips are mated convex and concave jaws designed to make reshaping simple and precise. These pliers work well on stainless as well as nickel titanium archwires up to 0.020 inches. Choosing orthodontic pliers forged from surgical grade stainless steel can help ensure strength and durability as well as corrosion resistance. As with any orthodontic tool, sterilization is important, and a product that is fully autoclavable is an advantage.