@@HeathLedgersChemist Well, it's not sheet, is it? It's not immaterial, though, so I guess it must be material. But I had it in stock. Thing is, I can't really agree with "stock" being an americanism. At least not a modern one, as I've always heard "stock" being used to refer to raw materials in a machining context. So I did a bit of searching. Atkins' "Workshop Practice" from 1929 refers to "stock" repeatedly, for example: "It is obvious that if the parting tool had a form on its side that would produce the round head in one operation, there would be considerable load on the tool as it nears the centre of the work, so, as the pip which holds it to the stock would be very small, the screw would break off before half the head had been formed."
