How To Cut A Round Hole In Metal Sheet

Next use a compass to outline the edge of the hole.

How to cut a round hole in metal sheet.

In this video we show you the best and safest way to cut a round hole into a can or rectangular duct. Hot metal chips will fly. Tap your hammer to leave an indentation on the sheet metal. This will create dimples in the sheet.

Put your ink to the use and mark the hole center. When drilling or punching a hole in sheet metal you more or less cut out the entire hole at once. Hole saws cut bigger holes for large holes a hole saw gets the job done cleanly and quickly. Depending on the tools you have you ll now need to punch or drill a hole where the indentation has been made to produce an accurate hole in your sheet metal.

Measure from the edges of the sheet metal to the point at which you wish to place the hole. When cutting out a circle one or sometimes two cutting tools are rotated about a center point to. Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design. It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.

Use your center punch to strike at the center of the hole. Step 1 create a paper pattern of the size and shape of hole you wish to cut. You ll need a drill sheet metal snips a start collar. This is how easy it is to make a rounded edge on metal.

You can cut mild steel up to about 3 8 in. At first locate the center of the whole. You can create the perfect uniform radius with these bevel heads. Now it s time to use that center punch.

Position the pattern on the sheet metal where the hole needs to go and draw a line around it using a permanent marker. Thick using a ferrous metal cutting blade. Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel. In our test it cut through rebar like a hot knife through butter.