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How to cut round sheet metal duct.
In this video we show you the best and safest way to cut a round hole into a can or rectangular duct.
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Learn how to cut a round hole in ductwork.
Here we show you how to adjust a round sheet metal duct elbow for 90 45 35 or from 0 to 90 or anything in between.
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Punch a starter hole in the metal with the blade of a straight screwdriver and a hammer large enough to fit the tip of the compound.
Using simple tools that every diy has available.
Use this technique if you re right handed or in tight quarters.
It may seem confusing adjusting a r.
You ll need a drill sheet metal snips a start collar.
Then you just sight on the far mark while you make the cut.
Mark the cut line or area on sheet metal with a felt tip marker.
Cut a round duct from the right hand side with green handled compound snips.
Keep the top blade aligned parallel to the cutting line to cut a straight line around the duct.
This is a very simple way to cut a hole in duct work.