Locking flex hand tool

A hand tool comprising:

• a handle,
• a connecting ratchet having a series of teeth,
• a head rotatably secured to the handle and configured to be ratcheted between a first position and a second position, and
• characterized in that the hand tool further comprises a positioning assembly disposed between the head and the handle, and configured to permit movement of the head between the first and second position, or selectively lock the head in either the first or second position or any ratcheted position therebetween, and wherein the positioning assembly comprises:
• a selector rotatable between a lock and unlock position, wherein said selector defines a selector cavity having an internal rim with at least one protrusion that extends out of the selector cavity,
• a gear slider disposed within the selector cavity and having a first end positioned toward the interior of the selector cavity and a second end that extends away from the selector cavity, and wherein the first end includes at least one protrusion that is configured to selectively engage with at least one protrusion of the internal rim, such that when the selector is in its lock position, the gear slider protrusion is engaged to the internal rim protrusion and axial movement of the gear slider is limited, and when the selector is in its unlock position the gear slider protrusion is not engaged to the internal rim protrusion and axial movement of the gear slider is not limited, and wherein the second end of the gear slider includes one or more teeth configured to selectively have either locking or ratchet type engagement with the connecting ratchet teeth such that when the selector is in its lock position, the limited axial movement of the gear slider causes the gear slider teeth to have locking engagement with the connecting ratchet teeth thereby locking the head in a desired position, and when the selector is in its unlock position, the axial movement of the gear slider permits ratchet type engagement of the gear slider teeth with the connecting ratchet teeth thereby permitting the head to be ratcheted between the first and second position, and
• a biasing element disposed within the selector cavity and biasing the gear slider out of the selector cavity.