What do I do when the short-jaw fold slip (wavy flange edges)?

What to check first

• Check the raw edge, pocket, or overlap before locking the joint.
• Seat the tool fully and square before applying force.
• Use a full controlled stroke when the tool needs a mechanical lock.
• Test the fit before sending the piece overhead.
• Remake or re-edge the part if the lock will not hold.

Likely recovery path

3-inch tongs cannot hold a wide sheet steady over a long span without drifting. For long straight folds on the ground, use a 24-inch or 36-inch hand folding bar (bar folder). Slide the raw metal edge into the precise 1/2-inch depth slot, grab both handles,.

Use this as field logic. Final dimensions, approved materials, tool settings, safety rules, and code-required details still come from the foreman, project specs, manufacturer instructions, employer policy, and AHJ.

Ask Foreman

Don't try to step-tongs a 36-inch wide layout—it looks like a roller coaster. Slide the metal into the bar folder slot and roll the whole edge up at once so the fold stays completely straight.

Do not do this

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

Why it matters

Bad tool execution damages material, slows the journeyman down, and can create leaks, failed joints, damaged equipment, or safety hazards.