Cutting Sheet Metal Ductwork

Photo 3 shows how to cut through thick metal.

Cutting sheet metal ductwork.

First if you want to cut a duct near the middle and use both ends mark and cut the duct before snapping it together. This sheet of 30 gauge galvanized steel has a maximum temperature rating of 390. 51 mm to 305 mm holes in up to 24 gauge steel and 26 gauge stainless steel. Make two marks for cutting when replacing ductwork when cutting pipe bob likes to mark the size he needs on each side of the open seam with a marker.

Duct work 10 x 4 x 36 long with end cap hvac duct. Cut sheet metal ducts with tin snips but match the type to the cut. Measurements for inches and centimeters are molded into body. The master flow 36 in.

Any tin snips will work for this. Https amzn to 2ndf97w the best tin aviation snips. You ll need a drill sheet metal snips a start collar. Then you just sight on the far mark while you make the cut.

The klein tools hole cutter will cut 2 in. Round metal duct pipe galvanized sheet metal duct work 24 metal ducts 16 inch hvac 3 inch rigid pipe. There are two ways to cut round ducts. Use for 24 gauge steel and 26 gauge stainless steel.

Royal metal products 8 x 4 x 4 in. Https amzn to 2kstzae sheet metal hammer. Be sure to wear thick heavy work gloves to protect your hands from the sharp edges of both the ductwork and the cutting tools themselves. 20 in x 25 in x 16 in duct square to round.

Dia holes in sheet metal. Flat metal is easier to cut than curved so he uses his knee to support and flatten the pipe while he opens it up. Use compound snips with offset handles for more leverage and thinner cutting blades to cut thick seams straight sections and. But when you come to the thicker locking seam you ll need the extra leverage of compound snips.

Cutting anything especially metal ductwork can be a dangerous task as the edges of sheet metal are extremely sharp even before you start to cut it. Flange insert box with gasket. Galvanized steel flat sheet can be cut to size for a tough hvac job that requires a customized fitting. One end will have an end cap and the other end will be raw notched at 1 2 for easy field modification.

Https amzn to 2mkd0sj large screw driver. Rectangular sheet metal duct.