I don't see the original post, so I'll throw some comments in here.

You don't mention what the cuts are for, a secure thumb grip on the back of
a blade, or to actually create a saw blade.
I suppose there will be some heat treatment after all the machining and
handcraft work has been completed.

A vertical mill can be used if the blade is held vertically, and then you
would want to cut a single groove/notch, and then advance the Z axis to the
next point for the next groove/cut.

For using a V cutter on a vertical mill, you could choose a shell arbor to
hold the V cutter disk.
If the grooved area to be cut is straight, you could utilize several V
cutters combined with some precision spacers.

If the grooved area is an arc, you're probably limited to cutting one groove
at a time, unless you could build (or have made) a custom tool from several
different diameters of V cutters on a shell arbor.

A more method might involve drilling a line/series of small holes which
would become the valleys of the grooved area.
A die filer would be handy for the finishing work, and careful cutting on a
bandsaw could be helpful in removing the bulk of the waste material.
A cut-off abrasive disk could be a substitute for the bandsaw.

The drilling method would allow the notches/grooves to be arranged in convex
arcs, if that would be desired. I've seen numerous knife blades where the
thumb notches are along a convex arc.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html



"Frank J Warner" wrote in message
news:150820090827340286%warnerf@veriSPAMMERSDIEzon .net...
What sort of end mill do I need to mill a series of V-grooves in the
edge of a piece of steel?

The steel is annealed D2, S30V, or ATS-34, from .125" to .250" thick (a
knife blade), and I want to make a series of regularly spaced V-grooves
laterally along the edge or spine, like this:

/\/\/\/\/\/\/\/\ The angle does not really matter as I will be finishing
these grooves
by hand with needle files. My objective is regular spacing with a
V-shaped notch or groove.

Sorry to be so dense but I am still learning some of the terminology
for these things.

-Frank

--
Here's some of my work:
http://www.franksknives.com