- Use big apical files when preparing root canals larger (than size 30) in apical diameter. - Use them with the S5 endo motor as a complement to the S5 rotary files. - Shape the canal as usual with the S5 rotary system and finish the apical portion using the big apical files. - Use them according the instructions for use accompanying the S5 endo motor. - The big apical files are also available in pre-sterilized blister as big apical files sterile. **For further product information, please contact chat support**