Sunday, July 7, 2024 - PCC Swap - part 11 - Plomb # 5251 3/8" ratchet (Los Angeles) 7 c

The ratchet turns in only one direction.
Thus, to reverse direction, you turn the ratchet upside-down.
Then, push the square center to move it to the other side of the ratchet.
Very clever design to get around a one-way ratchet.