"Tom Gardner" wrote in message
. com...
I'm reading an interesting novel about the island of Nantucket getting
transported back in time to 1200 BC. (Island in the sea of time) The
residence have to gear their technology back quite a bit, understandably.
One of the first things they do is organize the hobby machinists into an
industry to produce necessities and trade goods. Machine shop heroes!
One
big problem looming is the finite supply of tool steel and cutting tools.
How would someone with such limited resources make small quantities of
serviceable tool steel cutting tools? They have plenty of mild steel
from
boats and cars.

Carburize it and keep cutting speeds very low, like they did a little over a
century ago, before high-speed steel was developed.

--
Ed Huntress