Used these files for the first time and I am in love with them. Single file can be used for more that 8-10 single canal teeth and 7-8 molar teeth. With the same cutting efficiency as it was the first time.

I've found the Waldent Wal Flex S Blue Rotary Files reliable in providing efficient root canal shaping. Their flexibility and adaptability ensure predictable and smooth procedures. These files have become a staple in my endodontic toolkit.