Review on 🔩 TIME-SERT M8x1.25x11.7mm 10-Pack Insert, Part Number 18121 by Seth Damain

For most applications, I like thread repair systems much better than spiral thread repair systems. First, they are easier to install for beginners. I use them all the time in aluminum and cast iron. The inserts are available in different lengths and materials (e.g. steel and stainless steel). They also hold up pretty well thanks to their unique lockout design.