Machining method and multi-function tool

An improved device for use with a machining center having a machine spindle, and a fluid supply system, said device comprising:

• a tool body having a slot and a longitudinal axis;
• a drive mechanism disposed in said tool body;
• a machining device having a first machining surface and being connected to said drive mechanism and adapted for selective reciprocation within said slot from a retracted position to an extended position;
• a supporting mechanism having an interior surface with a portion of said interior surface angularly offset from the longitudinal axis to substantially restrict movement of the machining device relative to the tool body while positioned in said retracted position to enable accurate machining operations with said machining device in both its retracted and extended position, as desired;
• an auxiliary fluid connector configured to quickly and automatically establish fluid communication with the fluid supply system when said device is engaged with the spindle;
• and
• a biasing arrangement disposed in said tool body and configured for selectively reciprocating said machining device between said extended position and said retracted position.

An improved method for machining a plurality of concentric surfaces in an opening of a workpiece, said method comprising the steps of:

• (A) providing a combination machine device for use with a machine spindle and an auxiliary fluid supply system, said tool comprising:
• a tool body having a longitudinal axis, a peripheral surface and a slot;
• a drive mechanism in said tool body for receiving pressurized fluid from the fluid supply system;
• a first machining surface being selectively reciprocable relative to said tool body along said slot between a retracted position and an extended position;
• and
• a supporting mechanism having an interior surface with a portion of said interior surface being angularly offset from the longitudinal axis for substantially restricting movement of said first machining surface relative to said tool body and said slots while positioned in its retracted position;
• (B) machining the workpiece with said machining surface while said machining surface is positioned in its retracted position;
• (C) reciprocating said first machining surface from said retracted position to said extended position;
• and
• (D) machining said workpiece with said first machining surface in said extended position.