Review on 🔩 Heli-Coil M12X1.25 Metric Kit with 554312 Compatibility by Troy Hamilton

I bought this set to repair threads in an aluminum engine block. I removed the block and placed it on the stand. I used a metric tap to knock out the threads but unfortunately the tap was inaccurate and the thread was too loose. This kit installed without any problems and restored the block to a usable condition. This is exactly what I needed!