Abstract: Adjustable-size jaw sub-assemblies, jaw assemblies made from such sub-assemblies, and tools, particularly hand tools, made using such jaw assemblies. A plurality of jaws are connected to a base ring by pivot pins. Cam follower recess can be defined at positions of the inner perimeter of the base ring, and between opposing faces of the base ring. In the jaw assemblies, an actuator, such as a cover plate, covers at least a portion of one of opposing faces of the base ring, and one or more bridges connect the jaws to the actuator. Movement of the base ring relative to the actuator causes the jaws to pivot about the pivot pin axes, with the jaws moving in concert with each other thereby to reduce or expand the size of a work opening defined by the jaws.

Abstract: Adjustable-size jaw sub-assemblies, jaw assemblies made from such sub-assemblies, and tools, particularly hand tools, made using such jaw assemblies. A plurality of jaws are connected to a base ring by pivot pins. Cam follower recess can be defined at positions of the inner perimeter of the base ring, and between opposing faces of the base ring. In the jaw assemblies, an actuator, such as a cover plate, covers at least a portion of one of opposing faces of the base ring, and one or more bridges connect the jaws to the actuator. Movement of the base ring relative to the actuator causes the jaws to pivot about the pivot pin axes, with the jaws moving in concert with each other thereby to reduce or expand the size of a work opening defined by the jaws.

Abstract: Adjustable-size jaw sub-assemblies, jaw assemblies made from such sub-assemblies, and tools, particularly hand tools, made using such jaw assemblies. A plurality of jaws are connected to a base ring by pivot pins. Cam follower recess can be defined at positions of the inner perimeter of the base ring, and between opposing faces of the base ring. In the jaw assemblies, an actuator, such as a cover plate, covers at least a portion of one of opposing faces of the base ring, and one or more bridges connect the jaws to the actuator. Movement of the base ring relative to the actuator causes the jaws to pivot about the pivot pin axes, with the jaws moving in concert with each other thereby to reduce or expand the size of a work opening defined by the jaws.