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Old 02-21-2012, 06:15 PM   #21
MrMark
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Default Re: stripping the insulation How To?

I mean nick the wire with the stripper. I guess it has to nick it a little to cut all the way through cleanly. Copper is so soft compared to steel that the slightest little pressure on the copper nicks it some.

You say you can completely close the Klein's around the insulated wire in the act of stripping without nicking the wire? What model is this?
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Old 02-21-2012, 06:20 PM   #22
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Default Re: stripping the insulation How To?

This is the one I use

http://www.amazon.com/Klein-1412-Non..._ob_hi_title_2

it will nick the wire every time if you use it as intended by fully closing around a wire.

It will also nick the wires' insulation if fully closing around the cable to strip the jacket. I can only squeeze a little - not all the way - and pull to snap the jacket off. I never cut it clean any more after seeing the nicks it made. I was unable to use it as intended without nicks.

Two different things going on here but it doesn't seem to work perfectly on either one: stripping wires or stripping jackets. Maybe I am just not doing it right?

Last edited by MrMark; 02-21-2012 at 06:27 PM.
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Old 02-21-2012, 06:24 PM   #23
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Default Re: stripping the insulation How To?

this is the other one I have and it nicks too! But just a teeny bit and less than the Klein:

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Old 02-22-2012, 11:10 AM   #24
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Default Re: stripping the insulation How To?

For the #14 or #12 AWG copper, either use the wire-stripper type like MrMark posted above carefully, or just go 'up' one size with the stripper holes. ie: use the #12 'cutter' size for #14 wire, squeeze, 'ring' around the wire a bit, and pull.

As to the OP, for stripping 'big' wires, sharp knife and 'ring' around the insulation and then remove the insulation as desired.

Larger diameter, heavy jacketed, fine-stranded wires are a pain to do. I always seem to knick or pull off at least some strands.

A 'hot knife' type insulation stripper would be the way to go though. Not so practical for field use though. Good for bench work.
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Old 02-22-2012, 11:30 AM   #25
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Default Re: stripping the insulation How To?

Quote:
Originally Posted by green.bubbly View Post
I use my teeth and gnaw off the insulation.


I have my eyes on one of these. Anyone use one like this?

Lil Ripper Stripper. Looks like a great tool except when it comes to cutting off the stripped sheathing.






http://www.youtube.com/watch?v=GmrmzZTLF2s
I used to gnaw, then I had to pay the dentist $150 to put my false front tooth back in and he refused to sharpen it while it was out. So I had to buy a tool.

I just bought one of those yaller things yesterday - works OK for splitting the sheath on romex, not sure about stripping. I like my hand held better.
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Old 02-26-2012, 04:54 AM   #26
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Default Re: stripping the insulation How To?

With a pair of #9 kleins you grab the jacket on the flat side and give it a yank the outer will split and then you just pull it by hand and your done. No fancy tools needed to strip a romex.
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Old 02-26-2012, 06:26 AM   #27
matt151617
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Default Re: stripping the insulation How To?

Quote:
Originally Posted by green.bubbly View Post
I use my teeth and gnaw off the insulation.


I have my eyes on one of these. Anyone use one like this?

Lil Ripper Stripper. Looks like a great tool except when it comes to cutting off the stripped sheathing.






http://www.youtube.com/watch?v=GmrmzZTLF2s

I picked one of those up from Lowes for about $5, works great. Much easier than trying to use a utility knife to cut the sheathing. It also works great for twisting down wire nuts. I don't like the way it strips wire though, it never does a nice clean edge. I prefer to use an actual wire stripper/crimper.

When doing any electrical work, these are the tools I consider essential:

- Multimeter: to verify the circuit is dead
- No contact tester: to verify the circuit is dead again or when you want to cut into an existing line and have no way of checking it with a multimeter.
- Pliers: one pair of linesman, one pair of needlenose
- Romex stripper
- Light-up outlet tester
- Bag of yellow and bag of red wire nuts
- Utility knife
- Electrical tape
- LED headlamp
- Wirestripper
- Level
- Square bit driver, phillips, flathead screwdriver

Lowes sells a small electricians tool belt for $10, I threw everything in that and clip it to my belt while doing work.
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Old 02-26-2012, 10:10 AM   #28
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Default Re: stripping the insulation How To?

I use a couple tools that I like.

for round cable I have one of these. The cutting depth is adjustable and it does both a lengthwise and circumfrence cut. Works on single and multipe conductor round cable.


Photo courtesy of the snap-on web store site.

for regular conductors (ie 14, 16, 18 guage...) I have a set of these. do not buy cheap knock offs as they will nick your wires. These are Klein tools and again are one of my favorite tools.


photo courtesy of klein tools
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Old 02-26-2012, 01:53 PM   #29
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Default Re: stripping the insulation How To?

I picked up a pair of the klein yellow handle romex strippers, and they are fantastic. You can't squeeze them hard enough to touch the insulation on the individual conductors. Highly recommended, especially if you're doing a whole house.
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Old 02-29-2012, 08:45 PM   #30
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Default Re: stripping the insulation How To?

I build and wire custom automation machines at work and the wire stripper we use 99% of the time for individual conductors is the Stripax Pro stripper.
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Old 03-02-2012, 12:01 PM   #31
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Default Re: stripping the insulation How To?

For years, I used a Klein knife with a "hook" shaped blade, BUT it was not razor sharp so that it would cut or scrape into the copper. It will cut the romex jacket it ot nick the wire.
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Old 03-02-2012, 02:57 PM   #32
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Default Re: stripping the insulation How To?

Quote:
Originally Posted by MrMark View Post
Does anyone know of any strippers that 100 percent won't nick the wire when used as intended? I mean fully squeezed down on the wire. I haven't used that many but every one I have tried nicks the wire just a bit. Unacceptable to me so I have to resort to lighter pressure, ringing and poping. I maintain that you can "hear" a good strip as the insulation pops off.
seatek strip-all excellent product at a good price
http://www.seatekco.com/products.htm

FWIW most hand strippers (t-strippers) are color coded red handle is for stranded wire and the yellow handle ones are for solid conductors if you use the incorrect one you will nick the wire
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Old 03-03-2012, 05:00 PM   #33
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Default Re: stripping the insulation How To?

I was always told there were two important rules to using a knife:

The second rule is 'Don't cut towards your dick.'

The first rule is 'Don't cut towards my dick.'

Haven't had an accident yet.
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Old 03-03-2012, 05:06 PM   #34
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Default Re: stripping the insulation How To?

I would not use a utility knife, a kline or wiha knife is what I would used. Utility knifes can flex to much and break and shoot off. The electric knives will not, as it is much thicker.
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Old 03-05-2012, 09:37 AM   #35
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Default Re: stripping the insulation How To?

Based on my extensive experience of 1 subpanel install:

Run a ring all the way around the insulation with a utility knife, cutting most of the way through. You do not want to nick the conductor itself. At that point I could flex the wire just slightly at the ring and the insulation would break through the rest of the way.

After that it was easy to pull off.
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