This is my threaded insert instillation arm. It requires 8 of the pivot parts, 8 of the washer parts, and one of everything else. In terms of hardware, it requires 18 skateboard 608 bearings, 8 M8 x 35mm screws, one M8 nut, one roughly 95mm M8 screw, four M4 threaded inserts, and four M4 x 12mm screws.

The aluminum tubes are 1/2in x 1/2in and 16in long.

Video: https://youtu.be/AJrV1xkmci8