Cut metal with your circular saw.
Cutting expanded sheet metal.
In our test it cut through rebar like a hot knife through butter.
The following equipment is crucial.
Wax your saw blade before cutting sheet metal.
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Hot metal chips will fly everywhere.
First if you want to cut a duct near the middle and use both ends mark and cut the duct before snapping it together.
There are two ways to cut round ducts.
Straight cutting compound snips work best for cutting thick or doubled up sheet metal.
It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.
They don t cut curves well.
Expanded metal cutting tools.
Apply a thin layer of paraffin or saw wax to the blade just enough to cover the surface before making any cuts in the metal.
How to cut sheet steel using a jigsaw with a metal cutting blade.
The first step toward correctly cutting expanded metal is finding the right tools that will aid the process.
You can cut mild steel up to about 3 8 in.
Then choose a grinder drill saw or laser tool.
I would say you have to be kidding the shear is the the fastest cleanest and best way every other way is second if you go to a large sheetmetal shop that cuts stainless expanded metal that and a cnc plasma burn table for curves or old shapes is the way they mostly do it i like the shear because you can set it up where you trim the killer little sharp edges off or at least most of them.