Machining/burnishing dual geometry orbital drilling tool

A combination cutting and burnishing orbital drilling tool, comprising:

• an elongate tool body including a cutting end having radially extending cutting edges, the elongate tool body extending along a longitudinal axis;
• wherein the tool body includes
• a burnishing portion spaced from the cutting end and being configured to induce residual stress in a side wall of a hole without removing material;
• and
• a plurality of helical cutting edges interposed between the cutting end and the burnishing portion, each of the plurality of helical cutting edges extending circumferentially around and along the longitudinal axis of the tool body in a cutting helix, the plurality of helical cutting edges being configured to remove material from a workpiece, thereby creating the hole, during an orbital drilling process;
• wherein the plurality of helical cutting edges have in combination a maximum cutting radius that is located at a first longitudinal position on the longitudinal axis, and the burnishing portion has a burnishing radius that is located at a second longitudinal position on the longitudinal axis and that is greater than the maximum cutting radius.