6-station turret with its internal gear for rotation. Each face was bored with a central hole, to take boring bars and similar round-shank fittings, and four tapped holes, these being used to mount clamp-type toolholders of the type shown immediately below

Standard B2X clamp-type toolholder as supplied with each new machine. A variety of similar types was listed, some shorter, some longer and with combinations of straight and angled faces

Turret clamping mechanism - this used a V-shaped contracting ring in steel, cam-operated by the handle that also moved the hardened and ground turret locating plunger - the small boss at the 4 o'clock position relative to the central mounting stem

Side elevation of the spindle speed-change gearbox: mounted externally, bottom right, is the powerful, internally expanding hydraulically operated brake by Lockheed

Feed gearbox:  like the speed-change gearbox this was formed as a complete unit with shafts that ran in ball and roller bearings and gears made from heat-treated, nickel-chrome steel with their tooth profiles - and the shaft splines - being ground finished. The twelve feeds - hydraulically selected by sliding dog clutches of alloy steel in combination with a free wheel - were selected by a rotating dial and operated in vertical, horizontal and angular directions. Engagement of the reversible feeds was by a hardened, positive clutch with a shear pin fitted to prevent damage from overloading.

The so-called "pump and pulley box". This housed a hydraulic pump (A), a multi-plate clutch (B) and a built-in filter with external scraper knob at the front (C)

Screwcutting gearbox: this attachment consisted of a gearbox connected to the horizontal feed shaft with a lever-operated dog clutch selecting either the feed or screwcutting action. Both English and metric pitches could be generated - though each required their own feed screw, there being no transposing gears -  the former being seventeen in number and ranging from 3.5 to 16 t.p.i. and the latter twelve from 1.5 to 6.5 mm. An auxiliary gearbox was available that could generate coarser pitches. Unfortunately, fitting the screwcutting attachment sacrificed the ability to generate fine feed rates

Taper generating attachment. This unit was necessary if the required taper could not generated by swivelling the turret slide. The accessory worked by connecting together the horizontal and vertical feed shafts by a set of changewheels, the range being generated spanning 1° to 40° measured from either the horizontal or vertical plane - an idler gear being supplied to give reversal of the set taper. If tapers outside the standard range were required, the makers could make special arrangements for them to be generated

Equipment for machining axel boxes with its two self-centring jaws, one carrying an auxiliary jaw with micrometer adjustment to offset the horn cheeks from the bore by up to 3/16" in either direction. Also provided were stops for locating the bore relative to the end of the box. The unit was supplied complete with three boring bars (one each for roughing, finishing and underfacing or radiusing) and one extra bolt-on toolholder