I have followed the various links, In general I find not following can cause me confusion into the future. I have looked at the Arc set, it seemed to arrive on their site whilst I was composing my original post.
I don't know why the impression that I was a beginner came from, as the thread seems to have become about the needs of such a person.
Where I worked until recently the culture was such that a test of newbies to the company included the ability to off-hand grind tools, including Morse drills. No skill, no job. Most of the 'old-man's' staff had been with him 25 years or more.
The thing that is new to me is the much smaller sizes than I have been used to, mainly working on special aluminium alloys in 'suck-squeeze-bang-blow' machinery so scaling down is my main concern. Hence my questions.
Jerry