Individual Torque Pliers with Key .018''/.022'' are orthodontic tools used to apply torque to teeth. Torque is the rotation of a tooth around its long axis. These pliers allow orthodontists to precisely control the amount of torque applied to each individual tooth. The pliers have a key that is used to grip and bend the archwire. This allows the orthodontist to create the desired torque on the tooth. Individual Torque Pliers with Key .018''/.022'' are usually made of durable and high-quality materials, such as stainless steel, to ensure their longevity and resistance to corrosion. The size .018''/.022'' refers to the size of the slot in the plier that holds the archwire. This is a common size used in orthodontics.