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 variety taper design, more simple and safe, high quality cutting efficiency. - Heat Activation with special processing technology, excellent fracture resistance and the fatigue life was significantly enhanced. - Recommended rotary speed of engine files is 250~400RPM. Specifications: - Size: SX, S1, S2, F1, F2, F3. - Length: 31 mm. - Color: Gold. **For further product information, please contact Chat Support**