Benco Dental™ Variable Taper NiTi Gold Rotary Files are made from premium grade NiTi wire that is heat-treated to provide superb flexibility and durability. The file offers a popular 3-fluted design for superior cutting with enhanced resistance to cyclical fatigue. Each file has calibration rings for setting accurate working lengths and the file shank is ISO color-coded for easy identification. The Benco Dental™ Variable Taper NiTi Gold Rotary File system offers sStandard file sizes for easy brand comparison to other popular systems.