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Genuine Jacobs Valve Resurfacing Grinder Chuck.
Drill chuck marked Valve Grinder
Has thru hole all the way through the chuck and arbor.
Has normal wear, dents, dings, surface rusting as you'd expect from an older chuck. Does not have a model number marked on it.
Opens and closes smoothly. Jaws have some wear but not horrible. Could easily be dressed up on a grinder.
Chuck is threaded with what appears to be a removable arbor.
Arbor dimensions in photos. Fits pretty snug in a MT3 holder but might be another size for a grinder?
Comes as shown with chuck key.
Ships free.

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