Instead of pushing it forcefully slide the jigsaw slowly and allow it to eat through the sheet metal.
Cutting stainless steel sheet with jigsaw.
How to cut stainless steel with a jigsaw step 1.
How to cut stainless steel sheet with a saw.
Measure the length that you need to cut the stainless steel with the tape measure.
Sharp edges are present on the cut sheet metal so use a metal file or sandpaper to smooth the edges of your project.
Mark the cutting line with a marker on the backside of the sheet.
Lay the stainless steel flat on the worktable.
Cut through the sheet where you have put the marking.
Clamp a straightedge guide a level a board or a straightedge over the stainless sheet positioned so the saw blade will be on the cutting.
Place the sheet facedown on your work surface.