Some features of Orthodontic Instruments:

The steel used is very corrosion resistant. Also, the cutting tips and inserts are made of hard metal for efficient cutting. Rounded tips in some instruments are for patient’s safety and comfort. Also, the serrations on working ends on instruments are for a secure grip of the instrument. The bow-out handles are for the comfortable handling of the instrument by the operator.
 
The minimal requirement for an orthodontic plier is the same as that for other orthodontic instruments; they should be made of high-quality metal. The metal should be corrosion-resistant and sterilizable. Also, since the treatment is a specialized one, the pliers should bear the constant stress of bending and cutting wires to avoid wear and deformation on the active part of the instrument.