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How do seaming pliers work?

How do seaming pliers work?

Shop for Seaming Pliers

Simple, straight pair of seaming pliers Seaming pliers consist of a pair of metal levers joined at a point closer to one end of the levers, creating short jaws on one side, and longer handles on the other side. This gives the user a mechanical advantage, allowing the force of the hand’s grip to be amplified and focused on an object with precision.
Straight seaming pliers holding a piece of sheet metal The user grasps a single piece of sheet metal at a time between the jaws of seaming pliers. By closing the handles together firmly to hold it in place and exerting pressure on the pliers, the metal is bent or folded.

For more information, see: How to use straight seaming pliers?

Seaming pliers that need two hands to operate them The handles of some seaming pliers need to be opened and closed with both hands of the user, to produce the leverage required to bend metal.
Seaming pliers that are one-latch operated or scissor like Other seaming pliers have handles that are one-latch operated. This means that they open and close with a scissor action and so can be operated with one hand.

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