xxy.dddd.www.zz.<R><A>

xxy: full description series
xx: series
y: technological/constructive peculiarity
dddd: diameter in hundredths of a mm
www: three digits to represent characterizing geometric elements (Lc for drills, Pitch/TPI for threading cutters, Toric radius for toric cutters)
zz: number of cutting edges
<R>: Coating
<A>: Shape shank
<C>: S (straight): cylindrical, C: with collar