Abstract: A portable, in-situ, omni-directional orientable assembly for refurbishing a bore in a workpiece and including a cutting bar with various tool holding options, a main jig assembly for effecting azimuthal alignment, rotation and translation of the cutting bar and various journaling options, including non-journaled operation. The cutting bar is an elongate rigid bar which has multiple chambers for holding cutting tools in addition to a removeable, toroidal tool holding adjunct that is slidable on the cutting bar and lockable to the bar by the insertion of a key into mutual longitudinal keyways provided in the cutting bar and the toroidal tool holding adjunct. A main jig holding rotary drive means provides omni-directional alignment capability and adaptability for transferring the rotary motion, as well as translational motion, to the cutting bar. The cutting bar may or may not be journaled; but if journaling of the bar is desired, a portable pillow block assembly is provided.