This whatzit will be too easy for some. I think they will recognize even if its missing the small chain and hook that usually comes with it. I almost never use it because I much prefer the other tools for the same purpose.
I am sure I hit the right buttons but I will try again
I don't know what gone wrong but I will try the picture for the 3rd time.
Valve spring compressor
Half of a valve spring lifter, no hook (5-Z-319-2).
I have that tool and have used it, it works well.
I also have it, minus the hook but there are ways around that.
Tim Morsher You are right.
I wish I could find an original numbered hook. Have not found one forever.
This whatzit is so heavy I hate to carry it too far. Zim which made a lot of real good T tools manufactured one like it but is much smaller
I use this tool a lot. I had one of the Zim tools but liked this one because its bigger so I gave the Zim to a friend. This one was manufactured by Service Station Equp. Co.
I did not hit the button twice but will try again.
It sure looks like a piston vice.
Or a piston vise.
Jim Rodell, you are fast it is a piston vice.