Only with the right tools can the best possible results be achieved.
The press connections of the connectors in the solar sector have to withstand up to 30 A DC safely and permanently. In case of bad pressing (in the worst case scenario), arcs with up to 5000 ° C are possible. This is an acute fire hazard. This can be prevented quickly and effectively by using the right tool.
A good tool distinguishes the professional from the hobbyist. The cost of special crimping pliers pay off in the long run. You will notice the effect immediately with the first pressing.