You can go up a couple thickness with aluminum 20 gauge steel vs.
Cutting 22 gauge sheet metal.
Additionally the type of metal you are cutting make a big difference.
If it can handle 18 gauge steel it might be able to handle 22 gauge stainless and that is a big maybe.
If your project requires cutting a hole in the center of sheet metal draw it on the metal as you would any other cut line.
Use a bench shear to easily cut most gauges of sheet metal.
Simply line up your chisel along the line you are going to cut and strike the back of it with a hammer.
Throatless sheers can cut inside curves and other complicated shapes in addition to outside curves and straight lines.
A soft wood backer will allow for the chisel to pass through more easily by providing support for the metal.
Straight shears and throatless shears.
Bench shears come in two general types.
18 gauge aluminum but the opposite is true for stainless.
If you ve hit it hard enough the chisel will cut the sheet metal if it s thin enough.