Milling tool head assemblies, remote control systems, and portable machine tools including the same

A remote control system for a portable machine tool that comprises a machine frame, a rotating ring that is rotatingly coupled to the machine frame, and a milling tool head assembly with a milling tool head configured to convey a cutting tool along a primary tool path to machine a linear planar surface on a workpiece, the remote control system comprising:

• an operator pendant configured to receive a user input from a human user and to generate a control signal for remote operation of the portable machine tool,
• a control tether extending from the operator pendant to convey the control signal to another component of the remote control system,
• a pneumatic conditioning unit configured to receive and condition a pneumatic air source, and
• an auxiliary conditioning unit configured to receive the pneumatic air flow from the pneumatic conditioning unit and to supply the pneumatic air flow to the portable machine tool at least partially based upon the user input received by the operator pendant,
• wherein the pneumatic conditioning unit comprises:
• a pneumatic air inlet configured to receive a pneumatic air flow, and
• a main air supply outlet configured to supply at least a portion of the pneumatic air flow to one or both of another component of the remote control system and the portable machine tool, wherein the control signal comprises at least a portion of the pneumatic air flow.