Vs Flexi Files - NiTi Rotary Files Click here to find out more about the VS Flexi Files. For maximum peri-cervical dentine preservation. Advanced users only as modified obturation techniques required. Prepare apical 3/4mm and maximise dentine preservation coronally. These rotary files have a variable regressive taper, controlled memory, a parallelogram cross-section and a non cutting tip. Sizes #13.04/ #17.04 #20.06 / # 25.06 / #30.06 (06 taper only in apical 3mm) Available in packs of 6 For maximum peri-cervical dentine preservation. 6 files- 20 06, 13 04, 17 04, 20 06, 25 06, 30 06 Rotary memory controlled NiTi files have a number of advantages over stainless steel files, including: better flexibility, less risk of channel transportation and shortening the duration of the cleaning/shaping procedure