Installing tool

1. An installation tool for installing a fastener in a workpiece, the installation tool comprising:

a motor; and

a nose portion operatively attached to the motor, the nose portion having:

a collar engaging the motor,

a roller cage coupled to the collar, the roller cage having: i) a hollow, cylindrical shaped defining a central axis and an opening configured to receive a fastener for installation or removal, and ii) a plurality of bearing openings formed along an inner surface of the shape, and

a plurality of rollers, each roller disposed within one of the bearing openings in the roller cage, wherein each roller defines a non-offset circumference that is positioned around a central axis, except for at least two rollers that are offset so as to be positioned at a different circumference with a different diameter in comparison to the non-offset circumference.

2. The installation tool of claim 1 , wherein the at least two rollers are generally opposite each other.

3. The installation tool of claim 1 , wherein one or more rollers are positioned on the non-offset circumference so as to be disposed between every roller that is offset.

4. The installation tool of claim 1 , wherein the different diameter is smaller that of the non-offset circumference.

5. The installation tool of claim 1 , wherein the different diameter is greater than the non-offset circumference.

6. The installation tool of claim 1 , wherein the nose portion comprises a first portion and a second portion.

7. The installation tool of claim 6 , wherein the first portion and the second portion are selectively attachable to each other.

8. The installation tool of claim 6 , wherein the first portion comprises at least two flattened surfaces for receiving a tool.

9. The installation tool of claim 6 , wherein the second portion comprises at least two flattened surfaces for receiving a tool.

10. The installation tool of claim 6 , wherein the second portion comprises the roller cage.

11. The installation tool of claim 6 , wherein the first portion comprises a frustoconical inner surface integrally formed with the first portion.

12. The installation tool of claim 6 , wherein the second portion comprises a second roller cage configured to provide rotary force.

13. The installation tool of claim 1 , wherein the nose portion comprises a knurled portion disposed about an exterior of the nose portion.

14. The installation tool of claim 1 wherein the bearing openings for the offset rollers have a different size in comparison to the bearing openings around the non-offset diameter.

15. The installation tool of claim 1 wherein the offset rollers have a different size in comparison to the rollers around the non-offset diameter.

16. The installation tool of claim 1 wherein one or more biasing members are configured with selected rollers to create the different diameter and/or the non-offset diameter.

17. An installation tool for installing a fastener in a workpiece, the installation tool comprising:

a motor configured to rotate a nose portion; and

a nose portion,

wherein the nose portion includes:

a first roller cage and a plurality of rollers disposed about an annular inner surface of the first roller cage so as to define a non-offset circumference, wherein at least two rollers of the plurality of rollers are offset along a different circumference from the non-offset circumference; and

a second roller cage, wherein the first roller cage operatively prevents rotation of a fastener body received within the nose portion and the second roller cage provides rotary force to install and un-install the fastener.

18. The installation tool of claim 17 , wherein a diameter of the different circumference is greater than a diameter of the non-offset circumference.