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Author Topic: Replacing panel-mount 1/4" with XLR on a snake box...?  (Read 5157 times)

Mark Chrysostom

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #10 on: August 22, 2011, 10:25:49 pm »

I found the Greenlee punch for under $40.

Harbor Freight has a knockout punch set, but it jumps from 3/4" to 1". Damn.
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Dennis Awrey

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #11 on: August 22, 2011, 10:44:54 pm »

I found the Greenlee punch for under $40.

Harbor Freight has a knockout punch set, but it jumps from 3/4" to 1". Damn.

Even if Harbor Freight had the correct size, you want the Greenlee punch. I purchased my first Greenlee punch in 1977 and it is still going strong
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Mark Chrysostom

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #12 on: August 22, 2011, 10:48:10 pm »

Honestly, if Harbor Freight had it I would absolutely buy it there. Sockets, wrenches, things I use often: no way. Something I may or may not ever need again: sure.
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Dennis Awrey

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #13 on: August 22, 2011, 11:10:00 pm »

Honestly, if Harbor Freight had it I would absolutely buy it there. Sockets, wrenches, things I use often: no way. Something I may or may not ever need again: sure.

Have you heard the term "buy once, cry once"....it applies here.

Also, you are looking for a chassis punch rather than a knock out punch. A chassis punch is measured in actual hole size while a knock out punch is for electrical conduit sizes...a 1/2" conduit connector actually requires a 7/8" hole to mount in  so a 1/2" knock out punch does a 7/8" hole.
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Mark Chrysostom

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #14 on: August 22, 2011, 11:44:29 pm »

Honestly, if Harbor Freight had it I would absolutely buy it there. Sockets, wrenches, things I use often: no way. Something I may or may not ever need again: sure.

Have you heard the term "buy once, cry once"....it applies here.

Also, you are looking for a chassis punch rather than a knock out punch. A chassis punch is measured in actual hole size while a knock out punch is for electrical conduit sizes...a 1/2" conduit connector actually requires a 7/8" hole to mount in  so a 1/2" knock out punch does a 7/8" hole.

I saw that in the specs... Either way, it's not the right size. Greenlee it is.
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duane massey

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #15 on: August 23, 2011, 12:06:01 am »

Things to consider:

a draw-thru will only be accurate if you already have a 1/2" hole (for the smaller sizes). If you have a larger hole it can be challenging to center the punch in the hole. In this case the existing hole is probably 1/2" already. I can drill a pilot hole (3/16") and then use a good step bit much faster than using a draw-thtu if I am doing multiple holes. And, trust me, I've punched and drilled a lot of holes over the years. Either way will get the job done, just a matter of what you're comfortable with.
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Duane Massey
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Bob Charest

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Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #16 on: August 23, 2011, 08:26:25 am »

A Greenlee 15/16" chassis punch is 41.33 at Mouser Electronics...is that going to break the bank? Will you never in your life time need to punch XLR holes again?

 
Having been a machinist for over 20 years;
 
1) A larger drill will lead to torn sheetmetal and possibly injury.
 
2) A step drill will work if it's high quality AND has the right size on it.
 
3) A Greenlee punch will last forever, won't hurt you, makes a clean hole, and costs about the same as the step drill.
 
Use the Greenlee punch.
+1
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ProSoundWeb Community

Re: Replacing panel-mount 1/4" with XLR on a snake box...?
« Reply #16 on: August 23, 2011, 08:26:25 am »


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