Practice until you are confident with navigating the corrugations.
Cutting ribbed sheet metal.
You can cut corrugated metal both parallel to the ridges as well as across the ridges.
You can t cut along the sheet only effective cutting is cross cutting the corrugated iron.
Cut metal roofing with electric shears electric metal shears come in two varieties a standard plug in in power tool or better an attachment for your impact driver this is best done with malco tools.
Cutting corrugated metal with anything producing heat can void the warranty by your manufactures and can make permanent damage to the metal sheets causing them to rust.
Instead we recommend using a diamond blade that s rated to cut ferrous metal.
Lay the piece of corrugated sheet metal on a flat surface and use a tape measure to determine where it needs to be cut.
Whether you use an angle grinder or a circular saw the heat damages the edges and the shower of hot sparks can destroy the protective coating and burns the paint finish.
A tool like a nibbler is fast and easy to maneuver around to cut circles corners and angles in sheet metal work with out jamming like electric shears or tin snips would.
Such as straight cut snips left cut the right cut etc.
Draw a line down the length or width of the sheet metal using a pencil to mark the cut line.
This will not only brace it to keep it in place but you ll be able to pull it up as you cut.
Tin snips or aviation snips are one of the most widely used tools to cut sheet metals.
Hold the side of the metal sheet and put your snips around the edge.
An angle grinder fitted with an abrasive metal cutting disc works well to cut all kinds of metal including bolts angle iron rebar and even sheet metal.
There are some cuts that you can do with decent tin snips.
Also helps to have another pair of hands to wrestle with the metal.
But the discs wear down quickly cut slowly and shrink in diameter as you use them.
Hold the snips loose in your hand and place the two blades around the edge that you d like to cut.
Use your nondominant hand to hold the side of the metal.
