Mil spec wire crimpers?

[68LSS1]

Here's a good link showing connectors: http://www.jrhelec.com/index.shtml Here is a similar crimper and postioners (notice how many) that I'm talking about: http://www.astrotool.com/Products/mi...crimp_tool.htm



Edit for: even there ther is a MIL spec or standard, that standard is materials, dimension and size. The different companies use different part numbers. And most of the time they are not intermixable. The part number is actually made up by the type of connector so if you can go to that manufacturers web page you can decode the part number to determine the connector type, size, number and size of pins, angle, etc. Unfortunately, this will not be a easy task (to use and wire one's car with these plugs). I think the result will be well worth the effort but it's going to take a lot of effort).

[Jim Nilsen]

I got the connectors and tried it out. The first time was the charm. A real clover type crimp and it won't let go, it looks professional and it was on 16ga wire with the mid size pin that I was given. I have to try the small one and the larger one but I don't see any problems.I didn't even modify the jaws yet. I figured I didn't care if it smashed the insulation on the first test but it didn't even make a dent in it or leave it disconfigured at all. The sides of the terminal didn't bulge out so I don't see any problems in that either.

I am kind of excited about it since it hopefully will do all of the sizes I need to do. Now I just have to make it more solid mounted and it will make it a lot easier to do. It took less than a minute to crank down the jaws.

One question? How much tension is required for an aircraft quality pull test?

I'll get back with more info on how the other sizes work out but for now, I think I've got it !!!

Jim Nilsen


Just got done doing 20ga. 16ga. and 12ga. wires on both ends with success on all of them the first try. This seems like it will work for guy a that only has one car to do. It might be a little rough on the chuck after bunch of crimps but with the chuck I have it is holding up good so far.

I am having the place that I got the connectors from do a test on them to see if it is as good as the pro-crimpers do and see if they fit in the plugs right. I don't forsee any problems but I will wait for them to let me know.

[Jim Nilsen]

Just got done talking to Mike Brown at Wires and Pliers and he says that the crimps look good and fit just fine in the connectors. No problems installing or removing them.

I have my connectors on the way now and will be working on the harnesses soon. Mike says they come with insertion and extraction tools.

The part # for the Jacobs chuck that I used is #06255 7BA3/8 .

This is a 0-1/4" chuck that is for drills that forward and reverse. It is a rebuilable chuck from what I can tell but I am not certain. When I get into it a bit more to modify the jaws I will know more. So far I didn't have to modify them at all to get the crimps to pass inspection. The cost trough McMaster Carr is $59 plus your shipping and handling. Any really good hardware store or industrial supplier should be able to get one for you. You also might be able to use a less expensive 1/4 " chuck but it might not hold up as well. It takes a bit of effort to do the larger crimps but it works and I am not going to that many of them for me to worry about it. Home Depot or Lowes may even have them or be able to get one for you.

I hope this will save some of you the cost of the crimpers if you don't want to have them lying around useless after you do one harness. You can always use a new chuck for a drill that is old and worn out once your done. If you have one lying around now you know you can give it a try and it should work.

Getting the crimpers might be just as easy with all of the info we have been given and I appreciate all of the help I have recieved. It just goes to show how great this site is. If anyone has any questions just ask.

Thankyou Brian for all of the info,help and encouragement.

Thanks for the link to Mike Brown Charlie !!!

Jim Nilsen