Patent ID: 8578823
Filing Date: 2013-11-12
Classification: B25B,Y10T

Abstract:
1. A mandrel for releasably holding a bit within a distal end of the mandrel, the bit including a bit groove, the mandrel comprising: a socket for receiving the bit, the socket including a locking mechanism mounted within a chamber in an interior of the socket, the locking mechanism moving between a first position where the locking mechanism binds between the bit groove of the bit and a wall of the socket as the bit is pulled distally to prevent distal withdrawal of the bit, and a second position where the locking mechanism may be removed from the bit groove as the bit is pulled distally; and a release mechanism translationally mounted to the socket and circumjacent about the socket, the release mechanism capable of moving the locking mechanism from the first position to the second position as the bit is pulled distally, and the release mechanism includes at least one ear translationally mounted within a slot formed in a distal end of the socket, the ear bearing against the locking mechanism to move the locking mechanism from the first position to the second position.