Hammond question (not on Hammond site)

[Gribnes]

Is there a throat/backbore difference specifically between large shank v small shank 10M?
Thanks,
Hammond contact not functioning at the moment

[Kevbach33]

From the Hammond site:

"M

Medium-depth cup with a V shape. This is an extremely efficient cup with the capability of duel use between section work or possibly lead on small bore, or solo work on large bore. .257 throat/T2 backbore(small bore), .265 throat /T5 backbore(large)"

This goes for all M cups. Thus, we can deduce that a 10M small shank has the .257" throat and T2 (compact) backbore, while the large has the .265" throat and T5 (most open) backbore.

[Gribnes]

Thank you !! Of course it was in front of me...