Of rugged construction, the carriage was cast in the same chrome-nickel alloy iron as the bed and also subjected to artificial aging by heat treatment. Although the cross slide was of the short rather than full-length type an auxiliary T-slotted rear slide (with its own independently-adjustable gib strip) was available that, ingeniously, connected to the front element by a tenon joint.
The deep, beam-section bed was cast from a chrome-nickel alloy cast iron and then subjected to a series of heat treatments designed to stabilise the grain structure and relieve any internal stresses. Each bed was checked to ensure it reached the minimum of 100 Rockwell B Series (242 Brinell) and sample batches taken to ensure that the metallurgical and mechanical properties were within limits.
An unusual feature of the saddle was a strengthening rib formed around its top edge that was deep enough to come above the level of the cross-slide ways. A single very long chip guard (that could pass in front of the headstock) was fitted to the front right-hand saddle wing and self-adjusting, double-action wipers fitted to clean the bed ways; to lubricate them a store of oil was held within a cast-in compartment and distributed by felts
Both top and cross slide feed screws ran through ball races and, to allow backlash to be eliminated, the nuts were constructed in two halves with an adjustable wedge between
Constructed as a box (though with a bolt-on rear wall for ease of construction) the apron had selection of sliding and surfacing feeds by a push/pull button and engagement though a yolk-lever-operated adjustable friction clutch that doubled as an safety overload knock-off device. The feeds could be flicked in and out of engagement with ease; the operating pressure required being the same no matter what the cutting load.