Mystery Chuck Jaws

[Wyatt Holm]

Does anyone recognize this? I bought it at a swap meet. They said it was for a Vicmarc. The grooves line up with a VM100 but the holes do not.

 

[bob elliott]

They are Oneway jaws. Note the first picture of the underside of the jaw, there is a tiny hole to accommodate a safety pin. One of the 4 jaws should have the protruding (safety) pin.

 

[Wyatt Holm]

Here's a Vicmarc jaw next to it as well the full set.

 

[bob elliott]

I just looked at my jaws that fit the Talon and the Oneway chucks. In comparison to your picture, my guess is that your jaws fit the Stronghold (Oneway) chuck.