I thought that efficiency was good by crimping two parts at the same time, but it is hard to do because the boundary with the covering part can not be seen. Though it is for heavy line, it seems that it can not use other than the terminal on the picture. A normal round Giboshi · flat terminal could not be crushed well.
The feeling of use is very good as general purpose goods which can be crimped simultaneously at two places. There are a few tips on the first pinch, but I think I wonder if I should get used to it But the opening and closing is a bit heavy and the return of the spring is a little bad