(under subclass 27) Apparatus specially adapted to turn, face, and bore or drill a pulley or a wheel, and, in some instances, to slot the same. The apparatus of this subclass is characterized by the rotation of the work about its axis or by the rotation of the tool about the axis of the work.
SEE OR SEARCH CLASS
82, Turning,
107, and 108.
408, Cutting by Use of Rotating Axially Moving Tool,
20+, for a device of that class which is convertible to a cutting operation of another class and subclasses 22+ for a device of that class which is combined with structure for performing a cutting operation of another class.