Wire Twister Attachment

I needed to create a twisted pair using very thin wires (AWG28 or AWG30) and if you ever had to do that you know how painstaking is to have a power tool chuck get a hold on those tiny wires. I did search Thingiverse first, but the only design already available didn't look fit for my needs, so I went for my own design. It doesn't use any screw, bolt or nut, but you will not be able to twist the wires in their full length: something like 4 or 5 cm of wires will remain untwisted because that's what anchors the wires to the attachment. Usage instructions should be pretty straightforward: insert the two wires in the inner holes then have them go through the outer holes and under the arc you just created. This loose knot makes a tight connection between the screwdriver attachment and the wires. The attachment has a 6 mm shaft which can easily get into the screwdriver clamping mechanism. From there just keep the two wires firmly from the loose end and spin the power tool until you reach the d