Mystery Tools


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RBANNON
April 28, 2013, 03:17 PM
Hello all,

I found a couple of tools in a catch all box I purchased at an auction. They appear to be factory made. The tools were mixed in with some other gunsmithing items. My gut says they could be some sort of shotgun tool. One tool has:

O.F.M. P/N
F-3647

and the other has

F 1804

They appear to be from the same maker or source. Any help would be appreciated. Thanks in advance.

rbannon

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Reloadron
April 28, 2013, 07:10 PM
O.F.M. could be OF Mossberg but I don't have a clue. I am not a shotgun type.

Ron

Tolkachi Robotnik
April 28, 2013, 09:18 PM
The first one might be something that goes into buttstocks but I am unsure. I made a large screwdriver once to release a main bolt to the receiver on a break action. It might also be something to drift sights. Also, are the small holes such that might break loose a bead on the end of a shotgun? Are they six sided? The groove would allow a cantilever tightening if used for such, or could be gapped about a bead and then would grip.

The second one if thick might be a gauge to figure the forcing cone/chamber dimension. Measure and see if it is 2 3/4 inches. If it pulled away from the chamber wall as you slid it in you would have a shorter than standard chamber in a shotgun.

I have never seen any specific tool like either of these.

Jim K
April 28, 2013, 10:17 PM
The second one looks like a firing pin protrusion gauge. Put on the breech face, the firing pin should just touch the inside of the notch.

Jim

BBBBill
April 29, 2013, 10:14 PM
The first one looks like it might have a similar function to the Marvel High Standard hammer installation tool. Not exactly the same, but .....

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