Although designed in the late 1950s, it was not until the Summer of 2001 that the last (Mk. 3) version of the Super 7 lathe was introduced. Although the garish colour scheme might not have found universal approval, the machine was welcomed as a long-overdue development of this classic lathe: it had a larger and stiffer spindle able to pass a 1-inch (25.4 mm) diameter bar (a feature formerly limited to 0.75"), a M42.5 x 2 mm pitch nose and a 4 Morse taper socket. The greater convenience of the larger bore, the ability to carry a 5-inch diameter chuck and the increased mass of the headstock casting all contributed to a markedly improved model.
As before, the standard model had a centre height of 3.5" (88.9 mm) and a between-centres capacity of 18.687" (476 mm) while the long bed version admitted 30.687" (779 mm).
Produced in both screwcutting-by-changewheels and gearbox models, another significant change was made to the countershaft unit - the 2-step motor-to-countershaft belt and pulleys were changed to a Poly-V type giving much smoother running on top speed (a feature often lacking on earlier models) and extended belt life. However, on the ordinary "Big Bore", the drive from the countershaft swing-head to the spindle remained as before - a standard A-section V-belt that could be expected to give years of reliable service. To improve the feel of the cross-feed when using hand feed a needle roller thrust bearing was fitted to the cross-slide end bracket. The opportunity was also taken to improve the security and safety of the changewheel and countershaft belt guards - the inner and outer out sections were made much thicker and fitted with positive-action, 1/4-turn catches to replace the former rather weak spring-held closures that could easily be knocked open by a light blow in the right direction.
The standard drive system used a 0.55Kw (3/4 h.p.) 220-volt 1425 r.p.m. single-phase, resilient-mount motor controlled by push-button, on/off safety No-volt release starter, thermal protection for the motor, reversing switch and a turn-to-release mushroom-headed stop button. The speed range remained almost exactly as before from 28 to 2105 r/p/m. The option was offered of a 110-volt 60Hz supply (presumably for export) where control was by a rotary reversing switch that incorporated a no-volt release and gave speeds from 34 to 2526 r.p.m.
Fitted with numerous extras as standard, the top-of-the-range version was given the slightly embarrassing title of  "Connoisseur". This version featured an inverter-controlled, variable-speed drive from 26 to 3000 r.p.m., a spindle clutch, screwcutting gearbox, hardened bed, spindle indexing (by an attachment that used the backgear bullwheel), Poly-V drive to the headstock spindle and ready-mounted on the late-type industrial stand. Another small but useful option was introduced concurrent with the Plus models, a zeroing micrometer collar on the tailstock spindle.
One rather special long-bed Super 7 Plus Big Bore has been found. This has a spindle running in Timken taper roller bearings at the front, a nose thread of 50 mm x 1.5 mm and a spindle bore of 38 mm. Obviously a 'factory special', might this example have been a prototype?