TK 20 Ga. Button Lock Rollformer

The Tin Knocker 20ga Button Lock Roll Former is a durable, time-saving machine, designed to efficiently create a 2-piece button lock seam. Tooling on one side of the machine creates the male button, while the other side creates the female lock, and the 2 sides snap together to form a flush corner. This 9-station roll former eliminates the need to hammer over edges, which allows for significantly faster and simpler duct assembly.

Tin Knocker Tk 20 Ga. Button Lock Rollformer Manual