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| Forums10 Topics39,555 Posts562,698 Members14,593 |  | Most Online9,918Jul 28th, 2025
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Joined:  Oct 2004 Posts: 1,064 Sidelock |  
| OP   Sidelock 
 Joined:  Oct 2004 Posts: 1,064 | 
Maybe I'm just old and stupid but I still cannot  figure out how they machined hinge pins integral with the frames, Webly Scott 700's, Westley Richards, SKB, etc CHOPPER |  |  |  
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Joined:  Dec 2001 Posts: 7,321 Likes: 629 Sidelock |  
|   Sidelock 
 Joined:  Dec 2001 Posts: 7,321 Likes: 629 | 
the action was turned on a rotary table type setup against a cutter similar to a key way cutter. 
 
Firearms imports, consignments ![[Linked Image from i.imgur.com]](https://i.imgur.com/Ez9oz9Rl.jpg)  |  |  |  
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Joined:  Feb 2004 Posts: 13,883 Likes: 19 Sidelock |  
|   Sidelock 
 Joined:  Feb 2004 Posts: 13,883 Likes: 19 | 
Can someone post a pic?  I haven't seen any of the above. |  |  |  
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Joined:  Dec 2001 Posts: 12,743 Sidelock |  
|   Sidelock 
 Joined:  Dec 2001 Posts: 12,743 | 
the action was turned on a rotary table type setup against a cutter similar to a key way cutter.  How did you drive that cutter? If it had a shank on it, it would not have gone past the action flats, betwen the bars to get far enough around to complete the cut. Me'thinks we're going to have to come up with another method. 
 Miller/TN
 I Didn't Say Everything I Said,  Yogi Berra
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Joined:  Dec 2001 Posts: 7,321 Likes: 629 Sidelock |  
|   Sidelock 
 Joined:  Dec 2001 Posts: 7,321 Likes: 629 | 
A broach can be used to finish the cut, like Mr, Gera is doing on the male section of "the circle" on this action....http://forums.nitroexpress.com/showflat....e=0&fpart=2 But in my shop I would use a keyway cutter to get most of it out. By the way, I hate fixed pins. 
 
Firearms imports, consignments ![[Linked Image from i.imgur.com]](https://i.imgur.com/Ez9oz9Rl.jpg)  |  |  |  
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Joined:  Jan 2002 Posts: 5,954 Likes: 12 Sidelock |  
|   Sidelock 
 Joined:  Jan 2002 Posts: 5,954 Likes: 12 | 
Isn't "fixed pin" a bit of a misnomer?  Should it not be more accurately named a "pinless hinge" or a "frame hinge?" |  |  |  
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Joined:  Oct 2004 Posts: 1,064 Sidelock |  
| OP   Sidelock 
 Joined:  Oct 2004 Posts: 1,064 | 
I'm with Chuck. Still a mystery to me. Chops |  |  |  
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Joined:  Jul 2012 Posts: 4,946 Likes: 345 Sidelock |  
|   Sidelock 
 Joined:  Jul 2012 Posts: 4,946 Likes: 345 | 
I don't believe it is a "pinless" frame, it is likely a "fixed" pin which is nonremovable using common tools( usually an interferance fit,pressed in). To be replaced,such pins have to be drilled out.Some O/U don't have pins,instead have hinge lugs. The Franz Jaeger Patent doubles have two lugs milled with a hollow cutter and covered with a plate. Maybe Raimey or Axel can come up with patent drawings.Mike
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Joined:  Feb 2002 Posts: 14,466 Likes: 278 Sidelock |  
|   Sidelock 
 Joined:  Feb 2002 Posts: 14,466 Likes: 278 | 
In my opinion, it's an accident that has already happened, like grease joints in a car that can't be lubricated. |  |  |  
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Joined:  Jan 2002 Posts: 11,574 Likes: 167 Sidelock |  
|   Sidelock 
 Joined:  Jan 2002 Posts: 11,574 Likes: 167 | 
Are you talking grease zerks, eightbore?  That's where we put the grease when I worked in a service station and cars still had them. |  |  |  
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