Prepared angle and standing seams are tightly closed at undiminished quality by a spring-mounted hammer. The height of the seam is always 40 mm. The free-standing tool allows you to work even in tight corners and angles. The setting for sheet thickness is quickly selected without tools.

If the workpiece exhibits inconsistencies in sheet thickness, the TruTool F 125 adjusts automatically. Hammer and anvil can be conveniently exchanged without tools.