Take hold of the cranked seaming pliers and the sheet metal that you are going to be working with.
Step 2 – Grasp seam of sheet metal
Grasp a section of the sheet metal seam between the jaws of the seaming pliers and close the handles together, holding it firmly in place.
Step 3 – Bend seam of sheet metal
Exert pressure on the handles of the seaming pliers in order to bend the sheet metal.
Step 4 – Continue bending sheet metal
Keep moving the seaming pliers along the seam, opening and closing the handles and bending each small section of the sheet metal between the jaws until you have reached the end of the seam.