MayhewPro 37332 Screw Extractor Set, 5-Piece, Black

I have another different style of rather expensive set of easy outs. They did not work for what I needed. The other set bit in very well, but flared the threads into the block. I ordered these, and within 2 min my stuck threads were out. It will definitely be one of my favorite tools in my box!

Nice set! comes with a durable case

When I heard that spark plug pop, and the insulator came out in my hands, I thought for sure I was in for an engine head rebuild. I did some research and found out the square easy out tools, where the best bet for something like this because the spiral tools tend to spread out the spark plug threads inside the hole making it harder to remove.This kit showed up within a day. The quality is exceptional. The storage pouch is high-quality. The edges of the tool were very sharp, so I knew they were going to dig in to the threads easily.Of course, the spark plug that broke off was in the most inconvenient place behind the suspension spring. So I had to use a long combination of extensions and a socket designed for square oil pan bolts. see pic. (This is on a Ford F250 so I removed the inner fender-well to gain access to the plugs, thus needing the extensions) I used gorilla tape to secure the socket and easyout bit to the extensions. I also pre-soaked the spark plug threads with PB blaster a few times a day for a few days to loosen up the corrosion. You really have to hammer the easy out in pretty good to get it to bite, and use a very stiff extension. Once I did that, it came right out. I was thrilled. I couldn’t believe it actually had come out. Hallelujah! The clouds parted and the sun shown through (well the moon since I was up til midnight messing with it)This time I made sure to put some copper anti-seize grease on the spark plug threads to make sure the dissimilar metal corrosion couldn’t occur. The combination of an aluminum head with a steel spark plug caused galvanic corrosion (look it up, it’s real) that locked the spark plug into the head. The copper anti-seize provides a barrier that allows the current to flow between the head and the spark plug threads. Highly recommend.

As advertised.

I thought I was in for a HUGE repair bill, but this tool saved the day!!First time changing plugs and wires in my wife's 2008 Chevy Equinox and learned the hard way that the number two spark plug was seized. I thought maybe it was just rusted, due to the condition of the others, but PB Blaster and heat just didn't help.I resorted to using an impact socket on a breaker bar and easily twisted the plug in half. That was NOT the plan.Decided to buy this fluted style tool instead of the twist style after viewing lots of videos of real mechanics removing broken plugs.As you can see by the photos, the tool worked well. Turns out that the plug had been installed with crud in the threads and wasn't cross threaded.After removal, I used a reverse thread chaser to clean up the threads and the new plug went in smooth as butter.The plugs are 14mm threads and I used the largest tool in this kit, along with a 7/16" socket on a breaker bar. I used a magnetic pickup tool periodically to remove metal shavings, and continued using the PB Blaster.