1- Single file to complete the preparation
2- Unusually sharp section
3- The capacity of chip and chip evacuation enhanced
4- More flexible than the traditional single file, indication broader
A-Good variable pitch design for quick and automatic removal of debris to the crown side.
B-Variable pitch design and s-section, enhanced transverse cutting force, and weakened-Instrument “screwed in” dentin effect.
5-Use 06 taper tooth glue tip falling.