any idea what this is?

[emeraldcoupe]

this was in a tool box i recently bought. any idea what it is? the only marks on it are RIMAC PAT APP. sorry for the **** pics.

 

[Scout Driver]

Possibly part of a clutch or valve spring tester?

http://www.rimactools.com/Products.html

Scott

 

[Mickey O]

Camera out of focus, maybe try manual focus.

 

[930dreamer]

http://rimactools.com/ ????

 

[CCash]

Looks like the die part of a key-way cutting broaching set. The corresponding part (not shown) looks like a file with large teeth on the side. It's used for cutting a key-way inside of a round hole like a pulley or gear. The little knob on the side opposite of the opening is for holding and putting pressure on a shim to force the broach rod against the surface to be cut. Commonly used with an arbor press.