Made in two versions, large and small, the Rodney was more commonly fitted to Myford Series 7 and ML10 lathes - though base adaptors were also offered for Raglan, Boxford and other makes. The larger and heavier of the two (which could not be fitted to the ML10) was built around a very strong, box-section iron casting clamped to the bed by two bolts (with alignment adjustment by the use of two screws bearing against the back face of the bed ways). The drive - via a flexible nylon coupling - came from a Morse taper draw-bar retained plug in the lathe headstock. It passed through a pair of oil-bath-lubricated bevel gears to vertical shaft (running in sealed-for-life ball races) and then by narrow V-belt to a spindle turning in angular-contact ball races. The head was arranged to slide up and down through 3.25" (82 mm) on a machined face on the inside of the main casting and was fitted with both a quick-action rack-and-pinion drilling feed and a (quickly disengage-able) worn-and-wheel driven fine feed--the later employing a handwheel also used on the leadscrew end of the Myford Series 7 lathes. Spindle travel was 3" (76 mm) and the nose fitted with a No. 2 Morse taper and a standard Myford nose thread of 1.125" x 12 t.p.i.  The throat was a useful 4 3/8" (110 mm) and the spindle could be adjusted so that its end was a maximum of 6 inches above the lathe cross slide - though in practical terms this was only 2.5" above the face of a Clarkson Autolock collet holder. The whole unit weighed about 60 lbs (27 kg).
More often found fitted to the Myford ML10, the smaller and much lighter (42 lbs/19 kg) of the two Rodney milling attachments - the Mini-Miller - could also be provided with a base fitting for the 7 Series lathes. Although resembling its larger brother, its construction was very much simpler, with the head supported on a solid steel bar cleverly hidden under a rectangular cover that gave an impression of a much greater mass beneath. Drive was by a toothed belt, running over a pair of rear-mounted jockey pulleys with a two-pin socket taking the drive  from the lathe's headstock spindle.
No quick-action drilling feed was fitted and the only way of moving the spindle through its 5-inches of travel was by a top-mounted (Super 7) balanced handwheel that turned a long acme-form threaded rod identical in specification to that used on the lathe's compound slide rest assembly. Despite its limitations in comparison to the heavier unit, the Mini-Miller was an effective device and allowed an owner with a very limited amount of space to undertake a variety of otherwise impossible-to-achieve vertical milling operations.
Other milling attachments made for the Myford Series 7 and 10 lathes were the Amolco and, just for the 7 Series, the very rare Staines..