Wiktionary
n. (context engineering English) The raw stock used in various machining operations. It comes in standard cross-sections and certain lengths, such as six and eight feet.
Wikipedia
Bar stock, also colloquially known as billet, is a common form of raw purified metal, used by industry to manufacture metal parts and products.
Usage examples of "bar stock".
It took two gallons of sweat apiece to punch the busted pieces out, hacksaw some bar stock clumsy it into place and peen the ends over.
As the iron goes down on the fuller, Dorrin begins the routine-strike and recover while Yarrl slips the iron across the bottom fuller, strike and recover, strike and recover-until the bar stock cools and the smith reheats it.
I thought it was steel pipe with a dull, gleaming finish, but as he walked toward Meyer, flipping it and catching it, I guessed from the way he handled it that it had to be very light metal, probably aluminum bar stock.
Azziz was at his side, one hand clutching a piece of steel bar stock.
I mean, he's nowhere near as smart as Todd, and he probably couldn't help with actually making the nails, but maybe he could dump them in the barrels, or bring bar stock, or help Todd keep the shop cleaned up?
He sighed and turned to his wagon, pulling back the tarp to reveal iron bar stock.
But if you have the bar stock to make a knife, you accept it and make a knife, even if you'd like a woodaxe.
His piece of bar stock clattered to the floor as he rushed over to the machine.