1. Endodontic file (10) containing at least a central longitudinal thread (12), a spirally wound wire (14) at least partially surrounding the thread, and an elastomeric clip (16) partially covering the spirally wound wire near its first end and having an outer diameter slightly larger than the inner diameter of the barrel of the dental instrument, and when inserted into the barrel, it is held only by frictional force. File according to claim 1, characterized in that said central longitudinal thread (12) is made of twisted thin stainless steel wires welded together at the first end to form a hemispherical globule (18). A file according to claim 2, characterized in that said globule (18) has a diameter equal to the diameter of the thread. A file according to any one of claims 1 to 3, characterized in that said thread (12) has a diameter of 0.2 mm to 0.3 mm, and is twisted from 15-25 wires. A file according to any one of claims 1 to 3, characterized in that said thread (12) is securely attached at its second end to the spirally wound wire (14) by tightly twisting several turns of the spirally wound wire (14) around the thread. A file according to any one of claims 1 to 3, characterized in that said thread (12) is securely attached at its second end to a spirally wound wire (14) using any one or more methods selected from low-temperature brazing, high-temperature brazing, welding and gluing. 7. A file according to any one of claims 1 to 3, characterized in that said thread (12) is longer than the surrounding spirally wound wire (14), while said thread (12) has an open part (22) next to said globule (18), which is covered with a circular, spiral1. Эндодонтический файл (10), содержащий по меньшей мере центральную продольную нить (12), спирально намотанную проволоку (14), по меньшей мере частично окружающую нить, и эластомерный зажим (16), частично покрывающий спирально намотанную проволоку рядом с ее первым концом и имеющий внешний диаметр, слегка превышающий внутренний д
