(under the class definition) Apparatus comprising a tool drive means and a tool or means to receive or retain a tool for actuation by the drive means, the tool or tool receiving or retaining means being adapted to move relative to the drive in a direction parallel to the axis of tool advance, said relative movement being adapted to initiate, modify, or terminate the operation of the tool drive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2+, for automatic control of power operated means.
93.5+, for a rotary tool drive in which torsional load causes relative movement between a drive element and a tool to cause delivery of torsional impact.
