-Nickel-titanium NiTi tools are much more flexible suitable for a curved and narrow canal which, has a better cutting capacity, they have a shape memory (always return to their original shape).
Endostar H-files
• Effective, non-invasive instruments with a great cutting ability
The H-file has a great cutting ability and it is designed in a shape proposed by Dr. Hedstrom by the presence of one cutting edge angled at 90o