The red-snip right-hand bind (using the wrong color)

Red snips cut straight and left (counter-clockwise) because the lower jaw is on the left, forcing the metal on the right side to buckle. For trimming the right-hand side of a sheet, you must use green-handled snips (which cut straight and right). This.

Tools, Fasteners & Hardware 1st Year GREEN

Stop if

You're fighting the metal because you're using red snips on a right-hand trim. Swap them out for green snips so the lower jaw rolls the scrap metal cleanly away from our good layout line.

Watch out

Do not force the tool through the problem or substitute the wrong tool just to keep moving.

Check

Confirm which snips or shears match the cut direction and metal thickness.
Keep the good side of the sheet flat and let the scrap curl away.
Use short controlled strokes instead of fighting the tool.
Stop if the blade drifts, binds, or starts tearing the sheet.
Correct the tool setup before the edge turns into rework.

Steps

Confirm which snips or shears match the cut direction and metal thickness.
Keep the good side of the sheet flat and let the scrap curl away.
Use short controlled strokes instead of fighting the tool.
Stop if the blade drifts, binds, or starts tearing the sheet.
Correct the tool setup before the edge turns into rework.