What is this tool I found in a box of random tools? About 6 inches long, when the handle is squeezed a hook on the end comes out. A round nut can

Pneumatic Tools Steiner Electric Company

Brass cylindrical object almost 4 inches long and less than 0.25 inch in diameter, has tiny metal wheel at each end; has lines running lengthwise for better grip(?) : r/whatisthisthing

4 Simple Ways to Remove a Stuck Bolt - wikiHow

About 3.5 inches long, wooden handle, stainless cylinder runs through, can press it at one end and the other end separates like jaws (3rd photo) also one end appears to be burned : r/whatisthisthing

What is this tool I found in a box of random tools? About 6 inches long, when the handle is squeezed a hook on the end comes out. A round nut can