As the original tool-free adjustment printer, Workhorse printers stand the test of time as the professional's choice for strength, durability and ease of use. Workhorse printers are ideal for growing and high volume shops and those producing sophisticated designs. The large-diameter, full-length center shaft combined with print station support struts maximize strength. Precision machined cast aluminum print heads and print wheel combined with tapered roller bearings make high production manual printing effortless. The unique toll-free adjustments make set-up a dream. Models are upgradable from 4 color 4 station to 6 color 4 station, or from 6 color 6 station to 8 color 6 station.