Review on 🔩 E-Z Lok Stainless Steel Threaded Insert Kit, 1/4"-28 Thread Size, 0.250" Installed Length, Pack of 10 by Marco Gavi

I had threads on a machine part that I wanted to repair with this product. After drilling a hole with a drill (which was not included), I cut a hole and inserted the EZ-Coil thread. When turning the assembly tool handle, the head broke off, ruining the part I was trying to fix. Taps and thread inserts appear to be fine, but the assembly tool quality is poor.