TF means Taper Flat End.
TR means Taper Round End.
TC means Taper Conical End
FO means Flame Ogival End ,
SF means Straight Flat End .
SO means straight Ogival End
SR means straight round End
EX means special(extra) shape
RS means rounded shoulder
BR means ball Round.
BC means Ball collar Type.
DI means Double Inverted Cone.
SI means Single inverted Cone,
WR means wheel Round Edge
CR means inlay preparation .
CD means Childern's dentistry.
S means short shank .
SS means super short shank
C means coarse
F means fine
EF means extra fine
CD polishing