Patent ID: 8210072
Filing Date: 2012-07-03
Classification: B25B,F16D

Abstract:
1. A ratchet bit driving tool comprising: a tool driving shaft having a substantially hexagonal cross sectional shape and comprising substantially planar faces and corresponding vertices between said faces; a handle drive sleeve comprising a substantially cylindrical inner bore and adapted for attachment to a handle; and a roller bearing ratchet clutch comprising a substantially annular roller bearing cage situated between said tool driving shaft and said handle drive sleeve and adapted to selectively engage said tool driving shaft upon rotation of said handle drive sleeve in at least one direction, wherein said roller bearing cage comprises at least three roller bearing apertures in said annular roller bearing cage separated by at least three resilient locator bars with a substantially cylindrical roller bearing resiliently retained in each said aperture between a face of said tool driving shaft and said handle sleeve by said locator bars, said roller bearing cage additionally comprising at least three inwardly facing resilient position indexing notches operable to engage with a vertex of said tool driving shaft.