Abstract: Milling tool head assemblies, remote control systems, and portable machine tools including the same. A milling tool head assembly comprises a milling tool head carriage, a milling tool head with a milling tool head base pivotally coupled to the milling tool head carriage, and a milling tool carrier operatively coupled to a cutting tool. The milling tool carrier is configured to travel along a primary tool path, and the milling tool carrier is slidingly coupled to the milling tool head base to define a secondary tool path of the milling tool carrier. In some examples, a portable machine tool comprises a machine frame, a rotating ring, a bridge, a facing tool head assembly, and a milling tool head assembly. In some examples, a remote control system for a portable machine tool comprises an operator pendant, a control tether, a pneumatic conditioning unit, and an auxiliary conditioning unit.

Abstract: Methods comprise machining each of an annular planar surface and a linear planar surface of a workpiece using a combination flange facer and milling machine. Methods comprise using a machine frame of a flange facer and a rotating ring of the flange facer to mount a milling machine to a workpiece, and machining the workpiece using the milling machine when it is coupled to the rotating ring of the flange facer. Portable machining kits comprise a flange facer and a milling machine that is configured to be operatively mounted to the rotating ring of the flange facer. Portable machine tools comprise a machine frame, a rotating ring, a bridge coupled to the rotating ring, a facing tool head assembly configured to be selectively coupled to and decoupled from the bridge, and a milling tool head assembly configured to be selectively coupled to and decoupled from the bridge.

Abstract: Methods comprise machining each of an annular planar surface and a linear planar surface of a workpiece using a combination flange facer and milling machine. Methods comprise using a machine frame of a flange facer and a rotating ring of the flange facer to mount a milling machine to a workpiece, and machining the workpiece using the milling machine when it is coupled to the rotating ring of the flange facer. Portable machining kits comprise a flange facer and a milling machine that is configured to be operatively mounted to the rotating ring of the flange facer. Portable machine tools comprise a machine frame, a rotating ring, a bridge coupled to the rotating ring, a facing tool head assembly configured to be selectively coupled to and decoupled from the bridge, and a milling tool head assembly configured to be selectively coupled to and decoupled from the bridge.

Abstract: A multi-function navigation device in the form of a trackball that is both rotationally actuable and multi-directionally clickable. The multi-function navigation device can receive user commands by rotational movement and various directional clicking of the trackball. Directional depression of the multi-function navigation device activates switches corresponding to predetermined directions to effectuate directional selections or directional movements of a cursor for navigating the display of an electronic device.