Like their range of older Horizontal and Universal lathes, Adcock & Shipley distinguished between their early vertical millers with a simple sizing system, staring with the Models "0" and "1". Although small, the "0", was very heavily built with a head of massive construction - indeed, some would say over-engineered for the needs of its modest 27" x 7" table. However, this was a machine designed not for the delicate fingers of the university technician, but the horny hands of an impatient, unskilled operator striving by brutal means - and behind the foreman's back - to improve his or her end-of-week production bonus.
The arrangement of spindle speeds and table feeds was very similar to that employed on the Model "0" horizontal miller - with the hand feed to the table movements being supplemented by a power system of either conventional or "Mulitform Semi-automatic Cycle" type.
Four ranges of spindle speed were available, all direct belt driven on the high-speed range and, when fitted, through a lathe-like backgear assembly on the low. The all-high-speed models had speed ranges of:
"A" Speed Range (1450 rpm motor): 750, 1000, 1300, 1700, 2250 and 3000 rpm.
"B" Speed Range (960 rpm motor): 500, 675, 900, 1200, 1550 and 2000 rpm.
"C" Speed Range (1450 rpm motor): 500, 750,  1150, 1750, 2670 and 4000 rpm.
"D" Speed Range (960 rpm motor): 330, 500, 750, 1150, 1750 and 2670 rpm.
On the power-feed machines the table size most commonly fitted was 18.5" x 5" - and on the hand-operated versions 12" x 4.5".
The Model "1" was unusual for a semi-production miller in having not just a conventional elevating knee but also a vertical head (with an integrated motor drive) which could be slid up and down the V-ways of the main column in the manner of a jig borer..