Diadent's nickel-titanium (Ni-Ti) files are available in standard ISO sizes, .02 taper. DiaDent's Hedstrom files (H-Files) have flute depth that increases with the taper, creating a sharper, more flexible instrument. FLEXIBILITY Ni-Ti shaft is made of premium nickel-titanium with 5 times the flexibility compared to stainless steel files STRENGTH Ni-Ti has 10 times the stress resistance compared to stainless steel files CONVENIENCE Produces smooth and progressive enlargement of root canal Ni-Ti follows the existing canal path and has memory so there is no need to pre-bend the files EFFICIENCY Color-coded handles and pre-inserted silicone stops SAFETY Ni-Ti resists spontaneous breakage Increased angular rotation reduces fracture Ni-Ti decreases zipping and stripping