Finished in the glare-reducing and rather fetching crackle-black finish this Micromill, a Model 651-R has rack-and-pinion driven movement to both the vertical head and the table's longitudinal feed.
The drive countershaft carries a flat-belt, fast-and-loose pulley arrangement with the belt striker (to shift from idle to drive) probably foot-pedal operated and concealed beneath the bench. A similar model of countershaft of a type specially produced for the Micromill can be seen at the bottom of this page.

Micromill Model 750 with cam-operated feeds to both head and table. Because the table travel was so short,  only 3.15" (85mm), a lever-operated cam was chosen as the easiest and cheapest way of providing a smooth, sensitive yet positive movement. The cam, in the shape of a sector and turning on the end of a block of metal screwed to left-hand face of the cross slide, carried a slot near its periphery formed in the shape of an arch; fitted closely into this was a lug that extended from the end of the table.

Model 750-M Micromill with a 12-inch long rack-and-pinion feed table the top surface of which is formed as a replica of the watchmakers' lathe bed. Mounted on the table is the maker's "Semi-Universal Indexing Attachment"

Fast-and-loose countershaft for the Micromill. This unit carries an auxiliary round-rope drive to power a separate grinding or milling head.