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Old 05-13-2020, 09:02 PM   #16
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Re: Best tin snips/shears for minimal duct work?


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Originally Posted by surferdude2 View Post
This guy does it but I've seen a master do it with both snips at the same time:



Double Cut
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.
.
Yep, he spends way too much time picking up and laying snips down.
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Old 05-13-2020, 09:02 PM   #17
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Re: Best tin snips/shears for minimal duct work?


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Originally Posted by SeniorSitizen View Post
Maybe the two snip method is a lost art and was replaced with the single snip that cuts a 1/8" curl out. I can't seem to find any vids of the 2 snip method.
I drew a straight line with a sharpie across the sections I needed to cut off and just went at it with the left-offset pair. Of course, the snap-lock tubing I'm unfolding and laying flat when cutting.
The cuts were pretty straight but wanted to curve at some points (even then it was minimal and maybe 1/16" or less off.

Have no clue on the history of tin snipping but the two cut method makes sense to prevent the metal from caving in I guess? In my case, the left hand is 'peeling' the scrap pieces away. I guess since I don't intend on using those scraps it doesn't matter as much to me. But I can see how if you want to salvage the pieces you're cutting off, you might want to be more careful haha.
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Old 05-13-2020, 09:05 PM   #18
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Re: Best tin snips/shears for minimal duct work?


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Originally Posted by tom_poconos View Post
Also, wear gloves! Sheet metal is bloody sharp and you WILL cut yourself, often without even realizing.
Good idea - I was using a pair of 7mil gloves from Harbor Freight for part of the time. There were a few instances where I got lazy and didn't wear gloves but some of the sides of the sheet metal have dulled. The fresh-cut ends are probably dangerous though but I'm shoving that part up into the adjustable elbow anyway. Fortunately, I haven't cut myself yet (AFAIK!!) but still, probably a good idea to use gloves all the time moving forward haha.
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Old 05-13-2020, 10:02 PM   #19
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Re: Best tin snips/shears for minimal duct work?


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Originally Posted by jplee3 View Post
The cuts were pretty straight but wanted to curve at some points (even then it was minimal and maybe 1/16" or less off.
+
When cutting a straight line using cuts-left or cuts-right snips, you have to take smaller bites to keep it on line.

Tip: If you use directional cut snips upside down, they cut the opposite direction. Poor people have poor ways and that's one way they get by with less outlay on tools. I didn't do much tin work but occasionally got pushed into it... I kept my offset left snips under the truck seat... no others. They cut left, right and straight for the small jobs I did.

My neighbor in SpoCal was a retired tin knocker who built the huge dust collectors you see outside or atop some factories. He caught me using my aircraft style left cutters when I was doing the metal lath for my patio roof addition. He brought over his 16" scissor type snips and it was a WOW moment.. made the job 10 times faster and easier. He helped me for a few minutes and one time when I cut a piece free that he was holding, I said, "Be careful, that's sharp." He said, "Oh, you don't say." The fool giving advice to the master.
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