DIATECH, swiss dental instruments, ROUND END TAPER, 856-016-7-F
A single batch of Diatech Diamond dental burs, 856-016-7-F, Round end taper, contain diamond burs with the same grit size (fine) and shape (round end taper) but different length.
GA
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2436-2019