How To Cut A Round Hole In Sheet Metal Duct

Use curve cutting snips to cut circles.

How to cut a round hole in sheet metal duct.

Flat metal is easier to cut than curved so he uses his knee to support and flatten the pipe while he opens it up. Https amzn to 2mkd0sj large screw driver. Then you just sight on the far mark while you make the cut. Quality bearings assure a long cutting life.

Mark the cut line or area on sheet metal with a felt tip marker. Punch a starter hole for a circular cutout with a straight blade screwdriver. Visit my video on how to use tin snips to really become. This video will show you how to actually cut a round hole in the piece of duct your are installing.

51 mm to 305 mm holes in up to 24 gauge steel and 26 gauge stainless steel. 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. When cutting pipe bob likes to mark the size he needs on each side of the open seam with a marker. How to cut round ductwork to size with tin snips.

Make two marks for cutting when replacing ductwork. Https amzn to 2ndf97w the best tin aviation snips. Https amzn to 2kstzae sheet metal hammer. Pound on the back of the screwdriver with a hammer to puncture the metal and create an opening for the tin snips.

Making a circular cutout in a duct is simple using the techniques shown in photos 5 and 6. Switch and receptacle spacer. This versatile hole cutter installs into standard electric drill chucks. You ll need a drill sheet metal snips a start collar.

Inch and centimeter measurement scales are molded into the body for accurate hole diameters.