Patent ID: 7441480

Claim:
A driver, comprising: a bit interface including: a generally cylindrical body defining a longitudinal bore extending from a first end of the cylindrical body to a central portion of the cylindrical body; wherein the central portion of the cylindrical body defines an oblong channel that extends radially through the cylindrical body and the longitudinal bore; wherein the oblong channel is further defined by: a first flat wall; and a second flat wall generally parallel to the first flat wall; the central portion of the cylindrical body further defining a transverse groove adjacent the oblong channel and extending generally perpendicular to the longitudinal bore; a driver bit coupled to the bit interface, the driver bit including: an elongate shaft including a tool at a first end of the shaft, and an anti-rotation interface on a second end of the shaft; a generally cylindrical mid-portion coupling the first end and the second end; wherein the anti-rotation interface includes a first flat and a second flat; wherein the first flat and the second flat are generally parallel; and a retention groove on the cylindrical shaft; wherein the first and second flats are disposed between the first and second flat walls; wherein a portion of the elongate shaft proximate the first and second flats is disposed within the longitudinal bore; wherein the transverse groove aligns with the retention groove; a retaining clip coupled to the bit interface and to the driver bit; and wherein the retaining clip is at least partially disposed within the transverse groove and the retention groove.