Largest of Maho'e early conventional milling machines, the Model MH800 differed in being not only of very much more massive construction than the smaller types - at 1950 kg it weighed twice as much as the MH600 - but also, in its later version, of a rather different design. While the early Model 800 resembled its smaller siblings, with the drive mechanism inside the main column, later machines were radically redesigned with the head enormously enlarged and holding a speed-change gearbox driven directly from a 2.2 kW motor. The new arrangement reduced frictional losses in the transmission and gave 18 speeds from a slowest of 40 to a usefully-fast 4000 r.p.m.. Being intended to tackle heavier jobs both power feeds and "rapids" was fitted to every axis of table movement (the knee could be moved 500 mm longitudinally and 450 mm vertically) though, unlike the smaller models (and the earlier MH800), the feed-rate was not variable, being set at 18 individual steps between 8 and 400 mm, together with a rapid feed rate of 1000 mm per minute. The head unit, driven along its ways by the same 1.1 kW motor and mechanism as the knee, shared exactly the same number and rates of feed. While the vertical head on the first version was of noticeably lighter construction that that used on the second type it did have the benefit of a decently-sized  balanced handwheel (with micrometer dial) to drive its swivel angle setting.
Punch milling and spiral milling attachments for the MH800 were the same as employed on the smaller models but the three types of table offered were all suitably larger, heavier and with more T slots - though with exactly the same range of angular movements..