Abstract: A multi-function barrel finishing machine includes a central work processing section which is supported by a tiltable main spindle from horizontal to vertical or to inclined positions, and vice versa, the central work processing section including a turret rotatably supported by the main spindle and a plurality of barrel containers carried by the turret and which are capable of both axial rotation about their own axes, and orbital revolution about the main spindle. A single machine construction incorporates the various functions provided by the individual machines such as the horizontal-type high-speed centrifugal or planetary revolving barrel finishing machine, vertical-type high-speed centrifugal barrel finishing machine, horizontal-type rotating barrel finishing machine, and tiltable-type rotating barrel finishing machine. Those functions may be selected and performed singly or in any combination, depending upon the particular work processing requirements.