A hand tool assembly in one embodiment includes a pair of pivotable jaws, a first jaw mounted component, and a second jaw mounted component. The first jaw mounted component includes a first mounting portion that removably mounts the first jaw mounted component on a first of the pair of pivotable jaws. The second jaw mounted component includes second mounting portion that removably mounts the second jaw mounted component on a second of the pair of pivotable jaws. A first working surface of the first jaw mounted component and a second working surface of the second jaw mounted component define a channel when the first working surface is placed in direct opposition to the second working surface. The channel is complementary to the outer surface of a tubular work-piece and is configured to hold or work the work-piece when the pivotable jaws are pivoted to a clamped position.