Heat Set Insert Tool/Heat Pressing Machine with Heat Set Tips M2-M8 add Brass Metric Knurled Nuts for Threaded Inserts for Plastic and 3D Printing Components
For this rack build, I used a dedicated heat set insert tool so I could install the threaded inserts consistently and without wrecking the printed parts. Having controlled heat and the right tips makes it easier to seat the inserts straight, which is what you want when the rack is going to be assembled and serviced over time.
You'll be taken to Amazon to complete your purchase.