Review on 🔧 TIME-SERT M10x1.0 Spark Plug Thread Repair Kit Including Inserts P/n 4010-103 by David Pullen

This product appears to be the best out there. The inserts are many miles above the spiral screws. Unfortunately I have spent almost $300 on items that still disappoint me and are waiting for delivery. First, no one should ever buy a spring coil spark plug repair kit. These inserts last much longer and don't transfer a red elbow to the spark plug. I put fewer stars because the ad should have a disclaimer saying "Consult the Big-Sert Kit" for the failed coiled coil. This is for initial repairs. Secondly. The Big Sert kit is $50 off. Could have saved me a lot of time and money and have already travelled.