Hello, again. Thanks for all of the previous help. Another tool followed me home from the Sunday Flea. 2 identical tools, both stamped JO-LINE TOOLS INC. SOUTH GATE, CALIF. J00X-8. I believe the company made torque wrenches. Tool at top is shown in what I am guessing is the stored, or, locked position.The one at bottom looks like this is where you would start its use. Thanks, Lou