A self-packaged magnetic tool assembly has protective components which also serve as retail packaging, to facilitate retail sales without the need for any extraneous or temporary packaging. Preferably, the cubic oxide material is yttria-stabilized zirconia. The mounting bracket assembly is connected to a top portion of the post, whereas the base is slidably coupled to a bottom portion of the post, and defines a plurality of legs. The robot may include one or more arms configured for wafer handling. A gap-adjusting assembly moves the printhead andor the print medium dependent upon the pressure sensed by the pressure-sensing device.