Review on Thread Kits 3221 M12F Repair Kit by Robert Yates

This faucet is not working properly. I spent hours drilling a hole in the engine block to thread and insert coils and all attempts failed. I've (tentatively) been able to drive a larger screw in without thread repair and am guessing the tap isn't a thread repair tap, it's a regular tap with re-marking for thread repair size (WARNING BUYERS!) Broken all the threads repair reels, trying to force them into insertion . If the faucet is the wrong size, the coils won't go in.