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Cutting openings in sheet metal ducts.

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Cutting openings in sheet metal ducts. BETA-32 10-21-2007
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Posted by BETA-32 on October 21, 2007, 8:41 pm
I need to cut 2 rectangular openings in an existing HVAC supply and return
ducts.

How can I do this?

I've tried using a power jigsaw with a metal cutting blade -- big mess.

I see things like power shears when I do Google searches, but that seems
like a whole lot of money to spend to just cut the 2 openings.

Are there any hand tools or cutting chisels that will work for this?

Any other suggestions?



Posted by Nate Nagel on October 21, 2007, 8:53 pm
BETA-32 wrote:
> I need to cut 2 rectangular openings in an existing HVAC supply and return
> ducts.
>
> How can I do this?
>
> I've tried using a power jigsaw with a metal cutting blade -- big mess.
>
> I see things like power shears when I do Google searches, but that seems
> like a whole lot of money to spend to just cut the 2 openings.
>
> Are there any hand tools or cutting chisels that will work for this?
>
> Any other suggestions?
>
>

sure, just get some GOOD tinsnips. then you just need to make a hole
big enough to get the snips in and it will cut surprisingly easily.

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

Posted by JoeSpareBedroom on October 21, 2007, 9:06 pm
> BETA-32 wrote:
>> I need to cut 2 rectangular openings in an existing HVAC supply and
>> return ducts.
>>
>> How can I do this?
>>
>> I've tried using a power jigsaw with a metal cutting blade -- big mess.
>>
>> I see things like power shears when I do Google searches, but that seems
>> like a whole lot of money to spend to just cut the 2 openings.
>>
>> Are there any hand tools or cutting chisels that will work for this?
>>
>> Any other suggestions?
>
> sure, just get some GOOD tinsnips. then you just need to make a hole big
> enough to get the snips in and it will cut surprisingly easily.
>
> nate

Another vote for tin snips. Quiet, safe and accurate (once you get the hang
of it).

I ended up with good ones from a the Snap-On truck that used to stop by the
place I worked, when I was doing custom car audio installations a million
years ago. If nobody here offers any specific brand names for "good ones",
Snap-On is a safe bet. http://www.snap-on.com/



Posted by a on October 26, 2007, 7:16 pm
JoeSpareBedroom wrote:
>> BETA-32 wrote:
>>> I need to cut 2 rectangular openings in an existing HVAC supply and
>>> return ducts.
>>>
>>> How can I do this?
>>>
>>> I've tried using a power jigsaw with a metal cutting blade -- big mess.
>>>
>>> I see things like power shears when I do Google searches, but that seems
>>> like a whole lot of money to spend to just cut the 2 openings.
>>>
>>> Are there any hand tools or cutting chisels that will work for this?
>>>
>>> Any other suggestions?
>> sure, just get some GOOD tinsnips. then you just need to make a hole big
>> enough to get the snips in and it will cut surprisingly easily.
>>
>> nate
>
> Another vote for tin snips. Quiet, safe and accurate (once you get the hang
> of it).
>
> I ended up with good ones from a the Snap-On truck that used to stop by the
> place I worked, when I was doing custom car audio installations a million
> years ago. If nobody here offers any specific brand names for "good ones",
> Snap-On is a safe bet. http://www.snap-on.com/
>
>

Tin snips.

a

Posted by Steve Barker LT on October 21, 2007, 9:01 pm
My HVAC man uses tin snips. Novel concept eh? Take a screwdriver and
hammer, make a hole, snip away.

s

>I need to cut 2 rectangular openings in an existing HVAC supply and return
>ducts.
>
> How can I do this?
>
> I've tried using a power jigsaw with a metal cutting blade -- big mess.
>
> I see things like power shears when I do Google searches, but that seems
> like a whole lot of money to spend to just cut the 2 openings.
>
> Are there any hand tools or cutting chisels that will work for this?
>
> Any other suggestions?
>



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