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Old 08-17-2010, 09:25 AM   #1
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Air nibbler, hand nibbler or something else?

Need to cut some round clode to 4" dia. holes for tailights as well as make some small patches on the skin. What tool or tools do you all suggest? I have air shears and some straight cut hand shears.
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Old 08-17-2010, 09:28 AM   #2
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I think air nibbler from Harbor Freight, cheap. Make sure you get extra cutting parts as they have a tendency to break. Does a great job. Nice and smooth if you let the tool do the work.
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Old 08-17-2010, 09:46 AM   #3
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Yes Harbor Freight for an AIR NIBBLER. Be ready for tiny chips of metal. Lay down a cheap tarp(Harbor Freight) to catch em so ya dont track em all over. They will also get in foam like souls on shoes and can get tracked into the house or trailer and they come off in the carpet. NOT GOOD to step on in your bare feet.
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Old 08-17-2010, 10:02 AM   #4
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Thanks, the HF nibblers are on sale right now for $24.99. Are they easy to control?
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Old 08-17-2010, 10:10 AM   #5
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For round holes, we used a hole saw - the kind that has a drill bit pilot and fit on your drill. We had to get a 6" for the toilet flange, but had the 4" from working on our first trailer. The 6" was something like $40...geez, for one hole - but it worked great! The smaller ones are cheaper...

I think the HF shears are GREAT for straight cuts - it's what we used, but I don't think it will work well for that tight of a curve IMO. And a hole saw won't work for a round patch, it will leave a hole in the middle of the circle. It'll work great for the negative holes though...like for the tail lights. I think you're looking at two separate tools...use the nibbler for the patches and files to smooth the edges and the hole saw for the negative holes.

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Old 08-17-2010, 10:15 AM   #6
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I was trying to get away without buying a hole saw that I'd use maybe just this once in lieu
of a more versatile tool. I thought air shears were for the straight cuts and the nibblers were for tighter curves?
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Old 08-17-2010, 10:19 AM   #7
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Quote:
Originally Posted by SilverHoot View Post
I thought air shears were for the straight cuts and the nibblers were for tighter curves?
You're right, they are...but the hole saw gives a cleaner edge and you don't have to freehand it. We have all three - shears, nibbler & hole saw.

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Old 08-17-2010, 10:20 AM   #8
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Anybody have experience with these? Aircraft Tool Supply | JILSON SUPERSNIP SHEARS | J1451 My first thought is that they may distort the edge of the cut.
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Old 08-17-2010, 10:29 AM   #9
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Michael,

I have that tool. Got mine from Eastwood Company on sale, (Supercoup NR1 Nibbler Shears) and I think it was cheaper. Works OK, very clean cuts but it is better for straight "nibbles". For a circle you could get close to your line with an air saw and then finish with this. You have to be careful though or you will cut deeper than you intend to. With a little practice on scrap it will work fine. I have cut a whole sheet of aluminum in half with mine before I bought my air shears from Harbor Freight. Even made a hinge using it a couple of weeks ago.
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Old 08-17-2010, 10:56 AM   #10
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Just a suggestion...I use the nibblers...hand and air....then finish off and "tweek" the fit with a rotary file. Get them at Northern too.
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