Fastener driver

1. A socket comprising:

a driving portion including an outer surface and a driving bore;

a base portion;

a plurality of lands extending along the driving bore and configured to drive a first type of fastener; and

a cradle positioned within the driving bore and defining a driving surface for a second type of fastener, the driving surface curved within a first plane perpendicular to a longitudinal axis of the socket and curved within a second plane in which the longitudinal axis extends.

2. The socket of claim 1 , further comprising;

at least one slot in the outer surface of the driving portion, wherein the cradle abuts the slot and curves inwardly from the slot.

3. The socket of claim 2 , wherein:

the slot includes a bottom portion and a side portion;

the cradle abuts the bottom portion of the slot;

the cradle abuts the side portion of the slot;

the cradle curves inwardly from the bottom portion of the slot; and

the cradle curves inwardly from the side portion of the slot.

4. The socket of claim 1 , wherein the driving surface is defined by a portion of an ellipsoid lying within the first plane.

5. The socket of claim 4 , wherein the driving surface is defined by a portion of a circle lying within the second plane.

6. The socket of claim 1 , wherein the base portion includes a beveled proximal portion.

7. The socket of claim 1 , further comprising:

a plurality of ridges extending along the cradle.

8. The socket of claim 7 , wherein each of the plurality of ridges extends along a respective one of a plurality of planes in which the longitudinal axis of the socket lays.

9. A socket for driving at least two different types of fasteners, comprising:

a driving portion with an inner surface and an outer surface;

a plurality of driving surfaces extending longitudinally along the inner surface of the driving portion for driving a first type of fastener; and

a cradle extending inwardly from the outer surface along a continuously curved line for driving a second type of fastener.

10. The socket of claim 9 , wherein the cradle meets the outer surface along a portion of a slot extending from an end portion of the driving portion.

11. The socket of claim 10 , wherein the cradle meets the outer surface along a bottom portion of the slot and along a side portion of the slot.

12. The socket of claim 9 , wherein:

the cradle extends inwardly from the outer surface along a continuously curved line in a first plane perpendicular to a longitudinal axis of the socket; and

the cradle extends inwardly from the outer surface along a continuously curved line in a second plane in which the longitudinal axis extends.

13. The socket of claim 12 , wherein the cradle defines a portion of an ellipsoid in the first plane.

14. A socket comprising:

a driving portion including an outer side surface and a driving bore;

a base portion defining a coupling bore, the coupling bore opening to the driving bore;

a first plurality of driving surfaces extending longitudinally within the driving bore opposite to the side surface, each of the first plurality of driving surfaces positioned with respect to each of the other of the first plurality of driving surfaces to drive a first type of fastener; and

a second plurality of driving surfaces, each of the second plurality of driving surfaces extending along a continuously curved line from the outer surface of the driving portion to the coupling bore.

15. The socket of claim 14 , wherein each of the second plurality of driving surfaces extend along a continuously curved line in a plane perpendicular to the outer side surface.

16. The socket of claim 15 , wherein each of the second plurality of driving surfaces extends inwardly from a slot formed in the outer side surface.

17. The socket of claim 16 , further comprising a first plurality of ridges extending along a first of the second plurality of driving surfaces.

18. The socket of claim 17 , further comprising a second plurality of ridges extending along a second of the second plurality of driving surfaces, each of the second plurality of ridges extending along a plan in which a respective one of the first plurality of ridges extends.

19. The socket of claim 14 , wherein each of the second plurality of driving surfaces is formed along an arc with an origin located on a longitudinal axis of the socket.

20. The socket of claim 14 , wherein each of the second plurality of driving surfaces curves inwardly from the outer surface in a plane perpendicular to a longitudinal axis of the socket.