Semi-round edge punch for applying a round edge to the ends of the anti-slip strip. If you want to keep the stairs shorter, for example 65 cm long, then it is also possible to provide the ends with a rounded edge. Cutting this anti-slip strip goes well, but cutting a round edge is quite difficult. In particular, giving all the strips the exact same round side is not that simple. This is very easy with this twist iron, view the explanation in our video.