Overhauled Bridgeport Boss 3 Milling Machine w/ Mach 3 ...
The base machine is a Bridgeport Boss 3 which is a late 70's factory CNC conversion of the well known bulletproof series 1 mill. The differences between it and a standard manual mill are that the Boss machines used 3 axis ballscrews, chrome ways, wider and stronger ways and knee, shortened & widened table for greater rigidity (34x12-1/2 ...