AF-R Wire is produced with more flexible wire technology. Thus, the cutting resistance is increased. Thanks to its improved tip, it prevents the formation of steps. It is more resistant to cyclic fatigue. It has the feature of increasing file flexibility while maintaining cutting efficiency. It has the ability to separate more debris due to its different cross-sectional characteristics. - Size: #20. - Taper: 6%. **For further product information, please contact Chat Support**