Posted: 8/22/2014 8:02:15 PM EDT
| The staking on Colt castle nuts is about as good and positive as it gets. Does anyone know what tool is used to do it? If it is a proprietary, expensive tool, has anyone modified a punch or chisel to achieve a similar result? The center punch method provides a weak result in comparison to that aggressive Colt staking and round punches don't work much better. |
| I've heard stories about what Colt uses to stake receiver extension nuts with but I've never seen it. The consistency and quality of the operation certainly points to nice equipment. They key to a good DIY job is supporting the nut directly opposite of the staking point. The end plate material is really soft and will flow nicely into the slot on the nut with minimal force as long as its supported properly. |
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The staking can be done by hand with a specially made flat faced punch or with a DULLED center punch.
In all cases, the idea is to move some metal into the nuts notches, NOT to just put a punch mark in the metal. This is what's known as "keeping your eye on the ball". In other words, don't get confused as to what it is you're doing. People do fail to keep in mind what they're trying to do, which is why you'll see all sorts of punch marks that don't secure the nut correctly. |
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I seem to recall Ken with SAW said it was some special piece of equipment and his shop has one. Quoted:
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I have heard that they use an arbor press for this with fancy jigs to properly support the lower in place. I seem to recall Ken with SAW said it was some special piece of equipment and his shop has one. I seem to remember Ken saying it was an arbor press. Can an arbor press be considered a special piece of equipment? I guess it could be something more special like a hydraulic staking tool. |
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Quoted:
I seem to remember Ken saying it was an arbor press. Can an arbor press be considered a special piece of equipment? I guess it could be something more special like a hydraulic staking tool. Quoted:
Quoted:
Quoted:
I have heard that they use an arbor press for this with fancy jigs to properly support the lower in place. I seem to recall Ken with SAW said it was some special piece of equipment and his shop has one. I seem to remember Ken saying it was an arbor press. Can an arbor press be considered a special piece of equipment? I guess it could be something more special like a hydraulic staking tool. Probably a jig and such mounted in it. |
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The staking can be done by hand with a specially made flat faced punch or with a DULLED center punch. Do you have a photo of the results with a dulled center punch? I never would have thought of that, but it seems to make sense. I would like to see photos of a modified flat faced punch if anyone has one. It seems to me that would be the best way to get a stake job similar to Colt's. |
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Do you have a photo of the results with a dulled center punch? I never would have thought of that, but it seems to make sense. I would like to see photos of a modified flat faced punch if anyone has one. It seems to me that would be the best way to get a stake job similar to Colt's. Quoted:
Quoted:
The staking can be done by hand with a specially made flat faced punch or with a DULLED center punch. Do you have a photo of the results with a dulled center punch? I never would have thought of that, but it seems to make sense. I would like to see photos of a modified flat faced punch if anyone has one. It seems to me that would be the best way to get a stake job similar to Colt's. It works perfectly. I did one yesterday actually. When we have to bust a castle nut on the issued rifles here that's how we restake them. You can do it with the regular point, but if you dull it it seems to push more material into the gap. |
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That makes a lot of sense. the regular, sharp point doesn't move much metal. I am going to dull a point and try it. Quoted:
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....................... You can do it with the regular point, but if you dull it it seems to push more material into the gap. That makes a lot of sense. the regular, sharp point doesn't move much metal. I am going to dull a point and try it. Yeah it kinda makes dots like those stippling pattern. Dont have to dull it too much, just knock the sharp tip off some. It'll work better. |