K3XF NiTi Rotary File, #40, .04 Taper, 25 mm, Black, 6/Pk, 823-4405

The K3XF Nickel-Titanium rotary file is an endodontic instrument featuring a heat-treated, twisted, triangular shank with moderate stiffness and a variable pitch for efficient coronal debris removal. Its third radial land enhances centering for improved control and stability, while proprietary R-Phase Technology provides exceptional flexibility and resistance to cyclic fatigue. This file is color-coded black for size #40 with a .04 taper and a 25 mm length, and is available in a pack of 6.