Multifunction Portable in Line Boring and Welding Machine Tool. Our machines have the combined ability, with only one set-up, to Weld (internal/external using any Wire Feeding Machine) and Machine (Line Bore, Flange Facing, Threading, Drilling, Tapping) worn out pivot points to original manufacturers dimensions on mining, earthmoving, heavy construction, industrial, quarry, railway, naval, offshore equipment of any make and size.