I won’t part with this one! 
It has custom mods, like the bottom side is drilled with matrix of threaded holes to attach various holders, and the top with the optics is on a slider that increases the clearance between the bottom and the object very significantly. Technically you could use it for mounting the optics on other machinery. I should try if it can be coupled to the Dremel drill press, for circuitboard work… (though it will likely not fit, and a USB webcam-microscope may be a better bet.)
