Fig 91 TC cutting edge is made from stainless steel which is placed mesial to the beaks. They are especially designed for accuracy right to the tip, for smooth cutting of soft ligature wires and lock pins and elastomeric. It cannot be used on ligature more than 0.015 mmi= in diameter as it damages the cutting edge and used to cut metal strips or wire used in orthodontic work. Delicate cutter with a fine tip for easier access to difficult areas. For elastics, ligatures, pins and wires. TC instruments are designed to stay sharp for a significantly longer period of time than other standard instruments.