Best Way To Cut Sheet Metal Duct

My question is that i was watching one of your videos on cutting the sheet metal and you suggested punching a hold with a screwdriver.

Best way to cut sheet metal duct. If your project requires curved cuts make an easy economical and adjustable. Https amzn to 2ndf97w the best tin aviation snips. Use compound snips with offset handles for more leverage and thinner cutting blades to cut thick seams straight sections and. Tin snips with red colored handles can also cut straight lines and tighter curves to the left.

Straight cutting compound snips work best for cutting thick or doubled up sheet metal. If you use metal shears to cut thin sheet metal such as duct metal it curls and can be difficult to flaten properly. Place the sheet metal on top of the workbench and lay out your pattern using a tape measure pencil and straightedge. Keep in mind that the cut edges of sheet metal are very sharp.

Cut sheet metal ducts with tin snips but match the type to the cut. Using a chisel and hammer is the most basic form of cutting sheet metal. The illustrations are for a small bracket but i have cut 3 foot long pieces using this method. Https amzn to 2kstzae sheet metal hammer.

Or use a unit if you have one. But the discs wear down quickly cut slowly and shrink in diameter as you use them. They don t cut curves well. There are many other tools and methods used to cut sheet metal ducts including hole cutters roto zips hole saws and even jigsaws.

If you ve hit it hard enough the chisel will cut the sheet metal if it s thin enough. Simply line up your chisel along the line you are going to cut and strike the back of it with a hammer. Instead we recommend using a diamond blade that s rated to cut ferrous metal. These photo steps show that it can be done using a utility knife.

Https amzn to 2mkd0sj large screw driver. There are two ways to cut round ducts.