what is thisDescription:What tool is this, and what was this tool used for? Found it in my grandfather's toolbox. the ring does not open or close Comments:
HMMark on
Apr 14, 2010 at 23:28 PM
It's a ring groove cleaner for car and truck engine pistons. The bit can be rotated to fit different size grooves and the long button on the side is used to open/close and adjust tension.
blueskyblue on
There are lots of such kind of products at http://www.eaa-groups.com/
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