Going back to the original reason for me creating this thread.
I just received my copy of 'Milling:a complete guide' by Harold Hall.
I think that all of the items he covers in the book have also been presented in Model Engineer's Workshop; but I reasoned that it would be more convenient to have all this stuff in one place.
The items covered and the techniques used are very interesting,
But what immediately struck me was the speeds he uses.
He is recommending free cutting mild steel for his projects. But running a 12mm HSS cutter at 500 rpm.
Agreed, he does indicate that there is some leeway in this, but 500 rpm is less than half the recommended speed.
I do tend to wonder if many people have taken this advice too literally and wonder, as I did, why they were having problems milling with small cutters.