- For withdrawal of calcified dentin and gutta percha, and the withdrawal of broken instruments. - Irrigation ultrasonic files are used with a disinfectant solution. - To provide final decontamination, use sodium hypochlorite until the smear layer is removed. - K files are very sharp instruments and should be handled with precision. - However they are flexible and can therefore be pre-bent. - Length: 21 mm. - Packaging Contents: - Blister 4 x K15. **For further product information, please contact Chat Support**