Best Way To Cut Sheet Metal Duct

But the discs wear down quickly cut slowly and shrink in diameter as you use them.

Best way to cut sheet metal duct.

If you ve hit it hard enough the chisel will cut the sheet metal if it s thin enough. There are many other tools and methods used to cut sheet metal ducts including hole cutters roto zips hole saws and even jigsaws. The illustrations are for a small bracket but i have cut 3 foot long pieces using this method. Or use a unit if you have one.

If you use metal shears to cut thin sheet metal such as duct metal it curls and can be difficult to flaten properly. First if you want to cut a duct near the middle and use both ends mark and cut the duct before snapping it together. Tin snips with red colored handles can also cut straight lines and tighter curves to the left. Https amzn to 2kstzae sheet metal hammer.

Straight cutting compound snips work best for cutting thick or doubled up sheet metal. They don t cut curves well. Use compound snips with offset handles for more leverage and thinner cutting blades to cut thick seams straight sections and. Keep in mind that the cut edges of sheet metal are very sharp.

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

These photo steps show that it can be done using a utility knife. Simply line up your chisel along the line you are going to cut and strike the back of it with a hammer. Place the sheet metal on top of the workbench and lay out your pattern using a tape measure pencil and straightedge. Cut sheet metal ducts with tin snips but match the type to the cut.

Can i do that sort of thing with installed ducting or is there a better way to cut installed duct. If your project requires curved cuts make an easy economical and adjustable.