Tool Review: Milwaukee Tool 6-Point Spark Plug Sockets

June 9, 2023
Reviewed by Jaime Lazarus, retired technician from Ocala, Florida.

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Q: How did the tool function as far as saving you time?

A: The sockets offer three ways in which to perform the task of removing or installing spark plugs (3/8” square drive, a hexagonal end for a wrench, and a knurled perimeter for hand use) so I wasn’t limited to how I could do the job. Also, their methods of retaining the spark plugs ensure fewer spark plugs will fall out of the sockets, costing time retrieving the dropped spark plugs.

Q: How has using this tool impacted your shop’s profitability?

A: Less time is wasted using Milwaukee Tool 6-Point Spark Plug Sockets than when using other sockets — those which may allow the spark plug to be damaged, dropped, or otherwise not offer the same options for use.

Q: How easy was it to use?

A: It was easier in some ways than others since Milwaukee Tool 6-Point Spark Plug Sockets offer optional ways for use.

Q: How was its packaging? Did it come with any accessories?

A: The sockets dangle from a hook when on a display, using an easy-to-read plaque from which each socket hangs. Each plaque’s label identifies whether the socket is SAE or Metric, its size, and if it has a magnetic spark plug “grip”.

Q: Was there a manual included?

A: No manual is necessary, however on the socket’s label there are warnings about potential harm during misuse.

Q: What features did you like?

A: I like that the internal “flats” do not extend upward the whole length of the socket which allows one to use the socket to start the spark plug in its threaded hole without the use of another tool. I also like the way the spark plugs grip once inserted far enough, the three ways one might use them for spark plug removal or installation, and the large fonts used for socket identification.

Q: Is there any way you could think to improve or add to this tool?

A: Make swivel spark plug sockets with the same features as these. Also, offer the magnetic holder in more than just two sizes and improve the exterior knurling (make it coarser).

Q: What types of jobs/repairs did you use this tool for?

A: I used the sockets for automotive tune-ups, lawn tractor maintenance, and pressure washer spark plug replacement.

Q: How does this tool compare to other tools you’ve used like it?

A: I’ve used other brands of spark plug sockets in my 35-year automotive repair career. Some other brands have a soft rubber hose that is glued to the inside of the spark plug socket that wears out, becomes contaminated with grease and oils, and then disintegrates or breaks down the glue and falls out. Some sockets wear out and wobble, which lends it to break the spark plug porcelain and cause a misfire. The manufacturer’s website says the socket’s “durable dual-material rubber retainer is designed to maintain a more secure fit within the socket while securely holding onto spark plugs to avoid dropping or damaging” which implies it would work better than what I’ve used before.

Q: Is there anything you had questions or concerns about in regard to the tool?

A: Just one question, why isn’t a 3/4” version offered (for small two-stroke applications)?

Q: On a scale of 1 to 10, how would you rate this tool overall? Why?

A: A definite 10. It’s manufactured in a way that makes me believe the manufacturer listened to folks like you and me about what we want out of a quality spark plug socket.

About the Author

Jaime Lazarus

Jaime Lazarus retired in 2020 after 41 years in the transportation repair sector. Throughout his career, he filled such positions as “lube tech", mechanic, technician, shop-owner, inventor, automotive technologies instructor, and published author. Also known as “The Car Whisperer”, he was widely diversified in automotive diagnostics. Lazarus focused his career on emerging automotive technology, recognizing early on that the biggest challenge for automotive repair technicians is diagnosing electrical systems and electronic components. He was a four-time certified ASE Master Automotive Technician that had held the L-1 (Advanced Engine Performance) certification since the test's inception.   

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