Dupont crimping tool adapter

I bought a cheep crimping tool for crimping Dupont style wires. To make things a little easier, I created this adapter and glued it to my pliers. Now I simply stick the plug in the adapter, add the cable and press it with the crimp tool. Afterwards I usually have to use needle nosed pliers and press on the part where the copper wire sits, because the crimp tool does not do that very well.

I decided to print this with the square part sitting on the print bed and adding support for the rectangu