How To Cut Duct Sheet Metal

Cutting metal requires hand or power tools meant for the job because you can t just use a knife for instance and think you will be able to do the job properly or safely.

How to cut duct sheet metal.

In our test it cut through rebar like a hot knife through butter. It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool. Use compound snips with offset handles for more leverage and thinner. Lift the cutoff strip and roll it to the side to prevent it from binding on the tin snips handle.

Make long strokes for long straight cuts. Align the tool s blade with your pattern line the. Https amzn to 2ndf97w the best tin aviation snips. Thick using a ferrous metal cutting blade.

Place the metal on a hard surface to score it and on long pieces do the bending with the score place along a sharp edge of a bench and if necessary clamp the fixed piece with a long piece of flat wood to prevent buckling the metal while bending it back and forth. How to cut into hvac ductwork. Open the cutters as wide as you can at the start of each stroke and make long smooth strokes. Hot metal chips will fly everywhere.

Use the proper cutting tools. Simply line up your chisel along the line you are going to cut and strike the back of it with a hammer. If you ve hit it hard enough the chisel will cut the sheet metal if it s thin enough. Https amzn to 2mkd0sj large screw driver.

You can cut mild steel up to about 3 8 in. To cut straight lines use an electric saw. A soft wood backer will allow for the chisel to pass through more easily by providing support for the metal. Punch a starter hole in the metal with the blade of a.

Mark the cut line or area on sheet metal with a felt tip marker. Start by taping both sides of the sheet metal directly over the line you want to cut and clamp the metal to a work station so it doesn t move. Then grip the saw with both hands and push the blade through the metal to cut it. In order to cut metal ductwork you have to use the right tools for the job.

Cut sheet metal ducts with tin snips but match the type to the cut. Cut metal with your circular saw. Https amzn to 2kstzae sheet metal hammer.