Neil;
I certainly did not mean my statement in an offencive way. I did realize you had said you were a student, so figured you needed to learn the correct terminology. Would have beeen quite happy to help you see what a monoblock is, but apparently from your responce you already know & just got a little careless.
I too was a machinist (now retired) & I will just echo the great advice Chuck has given you.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra