Features: - Dental instruments dental rotary endo files endodontic files for endo motor. - Operation type: Engine use. - Made of high-quality NiTi alloy, good flexibility and super elasticity - Varied taper design more simpler and safer, with high-quality cutting efficiency. - Heat activation with special processing technology, excellent fracture resistance, and fatigue life were significantly enhanced. - The recommended rotary speed of engine files is 250~400RPM. - Size: SX, S1, S2, F1, F2, F3. Length: - SX 19 mm. - S1,S2,F1,F2,F3 25 mm. - Color: Silver. **For further product information, please contact Chat Support**