Best Way To Cut Round Holes In Sheet Metal

In this video we show you the best and safest way to cut a round hole into a can or rectangular duct.

Best way to cut round holes in sheet metal.

Typically the hole is large and the sheet metal won t fit on my cnc milling machine so i m left flailing. Thick using a ferrous metal cutting blade. Now it s time to use that center punch. Use your center punch to strike at the center of the hole.

In our test it cut through rebar like a hot knife through butter. The beveltools beveling machines are ergonomic making it easy to get them to the metal. Put your ink to the use and mark the hole center. This will create dimples in the sheet.

In response to a question about h. When cutting out a circle one or sometimes two cutting tools are rotated about a center point to. They don t cut curves well. It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.

How to cut holes in corrugated steel. You ll need a drill sheet metal snips a start collar. Create a paper pattern of the size and shape of hole you wish to cut. There are two ways to cut round ducts.

At first locate the center of the whole. Hot metal chips will fly everywhere. First if you want to cut a duct near the middle and use both ends mark and cut the duct before snapping it together. Straight cutting compound snips work best for cutting thick or doubled up sheet metal.

Next use a compass to outline the edge of the hole. As a result rounding small openings from a diameter of 5 8 16 mm becomes child s play. When drilling or punching a hole in sheet metal you more or less cut out the entire hole at once. Measure from the edges of the sheet metal to the point at which you.

Punch a hole through the metal using a cold chisel and mallet or drill through with a heavy duty drill. With this tool you stick an endmill in a die grinder put the grinder in the little fixture so it can pivot drill yourself a pilot hole for the pivot and away you go.