Active-pressure hole finishing tool

A cutting tool comprising:

• a drill body, comprising a tubular housing, that defines a drill axis, and a tool window formed into the tubular housing;
• a drill bit extending from the drill body co-axially relative to the drill axis;
• a material reworking attachment, movably coupled to the drill body, storable within the tool window of the drill body, and extendable from the tool window in a direction angled relative to the drill axis, into a material-removal position, and where the material reworking attachment comprises:
• a first chamfering blade, at a first angle relative to the drill axis;
• a second chamfering blade, at a second angle relative to the drill axis;
• and
• a finishing surface that remains parallel relative to the drill axis when the material reworking attachment is stored within the tool window of the drill body and as the material reworking attachment extends from the tool window into the material-removal position;
• a position manager, operatively coupled to the drill body to identify a position of the cutting tool with reference to a workpiece;
• and
• an actuator coupled to the cutting tool and configured to transition the material reworking attachment to the material-removal position in response to the position manager detecting that either the first chamfering blade or the second chamfering blade is adjacent a workpiece surface.

A cutting tool comprising:

• a drill body, comprising a tubular housing, that defines a drill axis, and a tool window formed into the tubular housing;
• a drill bit extending from the drill body co-axially relative to the drill axis;
• a material reworking attachment, movably coupled to the drill body, storable within the tool window of the drill body, and extendable from the tool window in a direction angled relative to the drill axis into one of either a surface-finishing position or a material-removal position, and where the material reworking attachment comprises:
• a first chamfering blade, at a first angle relative to the drill axis;
• a second chamfering blade, at a second angle relative to the drill axis;
• and
• a finishing surface that remains parallel to the drill axis when the material reworking attachment is stored within the tool window of the drill body and as the material reworking attachment extends from the tool window into the surface-finishing position or the material-removal position, wherein the finishing surface is interposed between the first chamfering blade and the second chamfering blade;
• a position manager, operatively coupled to the drill body to identify a position of the cutting tool with reference to a workpiece;
• and
• an actuator coupled to the cutting tool to transition the material reworking attachment from a stored position to the material-removal position, followed by a transition to the surface-finishing position, and followed by a transition to the material-removal position, where each transition is in response to the identified position of the cutting tool with reference to the workpiece.