The ZOOYL 3/8 Inch Drive Spark Plug Socket Set is a solid and reliable toolset for spark plug changes. The one socket I used worked well, gripping securely without slipping or feeling loose, which gave me confidence in its precision.One standout feature is the storage case, which is well-designed and keeps everything organized. It’s a great addition for keeping the sockets protected and easy to find.Overall, this is a high-quality and well-built socket set, perfect for anyone needing a secure and efficient tool for spark plug replacement!

Very nice spark plug socket set. I got these for my brother, an auto mechanic, who is a sucker for new tools and car gadgets. Since my car needed a tune up, he gave these a go and said they worked great. Very easy to use, gripped the spark plugs well and removed them without issue. In fact he said since his old set of spark plug sockets was missing a few pieces, this will be his go to set from now on. It has earned a place in his prized car tool cabinet and that’s pretty high praise. Works great and decently priced, highly recommended.

I have never tried this kind of spark plug socket. I hate those with rubber inserts and I typically prefer those magnetic type. These sockets retain spark plugs in a different way. They have small, spring-loaded pins that grab the bottom of the ceramic part. I played it with an used spark plug, and I can see that the pins will grab the bottom of the ceramic shield near the ring of blue stars. That is pretty cool. I am not sure why they design it this way. Maybe in some scenarios where you don't want to use magnetic tools? Maybe they are afraid that magnetic socket will attract metal chips which can fall into engine? I keep my garage super clean. I am not worried about that. Maybe someone that work out of a van would prefer this type? Anyway, they work pretty well and grab the spark plugs with similar force to the magnetic ones. So everything is fine. BTW, they are 12 points too. That makes them handy for newer cars.

These are very nice sockets, highly polished and chrome plated. The sizes are clearly marked on the side, and large enough to be read easily. The spring-loaded ball spark plug retention system works well, it holds the plug securely, more so than the sockets with the rubber insert. The five different sizes should fit the majority of spark plugs on the market. You may, however, come across some plugs that will not work with these sockets. I have two identical small engine spark plugs, a name-brand plug and another with only the number on it. The branded plug fits fine, but the porcelain on the no-name plug is slightly larger and will not enter the internal collar of the socket. I think these sockets will work fine with most spark plugs, but I am going to keep my old ones in case I need them.

This is a very clever design incorporated into spark plug retention within the socket. I'm not sure of what provides the "spring loaded" action to provide pressure on the 3 internal balls, so I can't speak to its longevity over the long haul.This is like a "Whitmans Sampler" of the most common sized spark plugs used. Nice. And the quality did seem to be there on the sockets, but I wish the blow molded case was metal.The sockets themselves do a very good job as designed, with the exception that I used one on an automotive spark plug, and it fit well, but when I used the same socket on the same size lawn mower spark plug - the 3-ball retention did not work. It must be the porcelain on the lawn mower plug was just a hair smaller than the automotive plug.

When it came time to swap out the spark plugs on my car, I knew I needed an upgrade from my old sockets with worn-out rubber inserts. Those always seemed to struggle with holding onto the plugs, leading to a frustrating game of fishing them out from deep in the engine bay. After some looking around, I landed on this ZOOYL 3/8 Inch Drive 5PC Spark Plug Socket Set, primarily because of its spring-loaded ball retention system, which promised a stronger grip and a smoother workflow. The first thing I noticed was the solid construction. The chrome molybdenum steel build feels robust, and the polished chrome finish gives it a professional touch. The sockets are neatly organized in a compact storage case, making it easy to keep everything in order. Size markings are laser-etched - a small but crucial detail that guarantees that the marking would not rub off over time. Putting the sockets to the test, I really appreciated the spring-loaded ball mechanism. Unlike traditional rubber or magnetic retention systems, this design firmly held onto the spark plug without the risk of it slipping out or leaving debris behind. Removing and installing plugs became noticeably smoother, and I never had to worry about a plug dropping into an awkward spot. The deep-well design and 12-point grip provided excellent control when removing and installing spark plugs. Despite the impressive performance, there was one small issue that kept them from being perfect. While the spring-loaded ball system worked very well, I would have preferred a 6-point socket instead of 12-point for an even more secure grip on stubborn plugs. It’s not a deal-breaker, but for those working on high-mileage vehicles with tight or corroded plugs, a 6-point option would have been ideal. But otherwise, this set exceeded my expectations, making spark plug changes quicker and more reliable. The build quality, retention system, and well-organized case make it a great addition to any DIY mechanic’s toolbox. The secure grip, clear markings, and thoughtful design make this a highly recommended set for both casual and frequent spark plug maintenance.Bottom line:This ZOOYL 3/8 Inch Drive 5PC Spark Plug Socket Set is great! Its spring-loaded ball retention system provides a strong grip, eliminating the frustration of dropped plugs. The chrome molybdenum steel build feels solid, and the laser-etched size markings ensure durability. The deep-well, 12-point design offers excellent control, though a 6-point option would be better for stubborn plugs. Despite that minor drawback, the secure grip, organized case, and smooth performance make this an excellent choice for DIY mechanics and frequent spark plug maintenance. 5 stars, highly recommended!Pros:1. Strong spring-loaded ball retention securely holds spark plugs.2. Durable chrome molybdenum steel construction.3. Polished chrome finish for a professional look.4. Laser-etched size markings resist fading.5. Deep-well design allows easy access to recessed plugs.6. 12-point grip provides smooth installation and removal.7. Comes in a compact, organized storage case.Cons:1. 12-point design may not grip stubborn plugs as well as a 6-point socket.2. No 6-point option for extra grip on tight or corroded plugs.