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How to use tin snips to cut sheet metal.
Punch a starter hole for a circular cutout with a straight blade screwdriver.
Use curve cutting snips to cut circles.
Proceed with the cutting until you complete a circular shape.
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They are essentially metal cutting scissors that are stronger and more durable than standard scissors.
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Compound snips also called aviation snips are color coded.
Use green snips to cut clockwise and red snips to cut counterclockwise.
Pound on the back of the screwdriver with a hammer to puncture the metal and create an opening for the tin snips.
The cutters are offset below the handle so you can keep your cutting hand above the work and the compound action allows you to cut thicker material with less effort.
To compensate for how metal may curve or bend cut a strip out where you use red snips for one side and green snips on the other cutting 2 inches at a time on alternating sides so two inches up the right side two inches up the left.
Pound the screwdriver at the back with a hammer to allow the tin snips into the metal sheet.
If you are committed to learning how to cut sheet metal by hand the cheapest solution by far would be using an aviation snip set.
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Use a screwdriver to punch a hole in the metal sheet.
Green snips are designed to cut clockwise curves and red snips to cut counterclockwise curves.
Tin snips have heavy blades that can cut through thin sheets of metal.
