What is it

[lowie_fuzz@yahoo.com]

Hi found this in a box I check E/bay & Google with no luck.

[turnnut]

 ???  does that outer sleeve have pipe threads ??   or the same as a spark plug thread ??

what size is the sleeve diameter ?

how long is the bolt ???

just looking for some clues.

[Papaw]

I think it is some kind of puller. Look at http://kar.ca/ KAR Industrial.

[couchspring]

GM a/c compressor pulley tool ?

[p_toad]

If that thing is threaded all the way thru; and the end is threaded to go into the spark plug hole...my guess would be a stop for checking for top dead center when setting up a new timing on an engine.

[Lostmind]

GM a/c compressor pulley tool ?

X2

[turnnut]

 I believe that couchspring & lostmind are on the right path.

google;  A/C   clutch hub remover tool.

[bill300d]

I'm leaning towards the TDC idea. Haven't seen one in years but that's how I remember them.

[Papaw]

I have used TDC finders, but don't think I would use one that is threaded and might be set too deep and stop piston travel before TDC.