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Shortening up action screws

None of mine are metric. And I don't remember for sure just how big a bolt I can cut but I will check. And if it messed up the threads then why would I use it? I think some people post before thinking!! As far as being hard to cut well I am about 160 and I can do it. But I do work with my hands a lot.
It "doesn't" damage the threads.
 
It "doesn't" damage the threads.
No sir. Not yet and I have cut a few. I am not saying this is a perfect way of doing this. but I don't have a lathe or some of the other nice shop equipment that some on here do. If you have better tools then I would use them. I don't!!!
 
Give three machinists the same job and tell them to figure out the best way to do it. You may get an answer in a year or whenever two of them die or get p.o.'d and start questioning your heritage. :D:D:D

:D A little off-topic, but years ago when I just started in the trade, I was building a part for myself. I was going to leave it as-is after heat-treating it, so I was smoothing & lapping the tool marks out prior to...i.e. alot of extra hand work. An older toolmaker I worked with asked me what I was doing, so I explained. He said "If you're doing work for a paying customer, build the part to their spec. It's what they're expecting & paying for. If you're doing work for yourself, build the part to your spec. It's what you're expecting & paying for."

It took a lil' bit for that one to sink in :)
 
You guys will laugh, but I bought a cheap Harbor Freight vacuum base vise just for adjusting the length of action screws. It cost less than $20 and has grooved jaws, both horizontally and vertically. For small adjustments I grip the screw vertically in the opposing V grooves, and use a file. The vise stays on a shelf in my closet. My desk has a smooth laminate top that the vacuum base works well on. If I need to take more off, I use a reinforced cutoff wheel on a tool that is similar to a Dremel, double nutting a little long and then finishing as above. The results have been fine this way, and with a sharp fine cut file, the work proceeds at a good pace. Why swat a fly with a sledge hammer?
 
Three pages on cutting off a couple threads from a 1/4-28 action screw and still going strong. We should call this a "chain" thread. Then again, it's really a "thread" thread. How about a plasma cutter? Has anyone done it that way?
 
Other ways could be used too,
-Cutting torch
-Bolt cutter
-Set em on the railroad tracks and the next locomotive that comes by will squeeze the end off
- You could wish them shorter
- You also could shoot them off shorter kinda like they do in the movies
 

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