Patent ID: 9028505
Filing Date: 2015-05-12
Classification: A61B,A61F,B25B,Y10T

Abstract:
1. A bit driving system, comprising: a bit to be driven; a handle extending along a longitudinal axis between a first end and a second end; a first bit connection portion at least at one of the first end or the second end to selectively engage the handle in a first axial configuration; a second bit connection portion intermediate the first end and the second end to selectively engage the handle in a second non-axial configuration; and a gear assembly selectively engaging the handle at the first bit connection portion to provide a first drive ratio for the bit driving system when in the first axial configuration and disengaging the handle at the first bit connection portion to provide a second drive ratio for the bit driving system when in the second non-axial configuration, wherein the first drive ratio is a rotation of the bit relative to the handle and different than the second drive ratio that is also a rotation of the bit relative to the handle.