"Bob Engelhardt" wrote in message
. ..


Anybody want to do the numbers for drilling? Lathe, mill, shaper, ...?

Bob


I think that drilling would win by a landslide. Heck, 25 years ago I worked
at a machine shop and I got a kick out of drilling 2" holes in steel, in a
40 HP turning lathe, carbide insert drill. You could ram that drill in to
the stock about as fast as you wanted to, at a fairly high RPM too. The
chips would come out cold with the flood coolant. IIRC we could drill some
where around 1/2" per second.
It is kind of like building race cars. How fast you want to go is limited by
how much money you have to spend!
Greg