Roger rlrsk8r at hot mail wrote:

I will not be making high number production runs of these rivets and
the cutting speed will not be that high. It is definitely a throw-away
cutter.

Do any of you have suggestions for this project ?

I would make something that looks like a rose bit. Difference is, that
the bit you make has no hole but a convex dimple in it (that forms the
head. Use drill rod for you tool.
You can form that convex shape with a radius mill. Cut 3 or 4 slots that
will form the cutting edges. Harden and temper.

Nick
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