Patent attributes
Radially spaced blades extending into grooves in the faces of a socket for socket wrenches. Each blade has a curved face facing a bolt head inserted into the socket and an opposite curved face against respective grooves in the bolt face. The blades engaging a hex-head of a bolt inserted into the socket. Applying torque to the socket against resistance from the bolt, urges the blades against their respective groove to secure the bolt head in the socket. The shaft of an Allen wrench is secured in the socket so that its head does not interfere with the head of a hex bolt inserted into the socket. When the Allen wrench is released from its recessed position, the Allen wrench can move upward toward the socket's open end where it can engage an Allen bolt head.
