spark plug socket

Sorry, a really dumb question but hopefully easy to answer:

What size socket do I need for the spark plugs in my MG TF? There is a bewildering array of sizes out there. It seems that some are measured by the thread size and some by the spanner size and there are at least 2 different plug sizes. I only need one because the rubber insert in my old one perished and will not lift out the plugs.

Any recommendations (1/2" socket set)?

Technical Information:
Thread Diameter (mm): 14
Thread Reach (mm): 19
Hex Size (mm): 16
Gap (mm): 1.1

SteveFMk1 wrote:

Technical Information:
Hex Size (mm): 16

5/8” in the old money

For most jobs on our cars a 3/8” drive socket set would be best….. not as bulky and will give you a bit more wriggle room in the darker cramped nether regions of our engine bays.
In fact a combination 1/4” and 3/8” drive set would be best

Cobber wrote:

SteveFMk1 wrote:

Technical Information:
Hex Size (mm): 16

5/8” in the old money

For most jobs on our cars a 3/8” drive socket set would be best….. not as bulky and will give you a bit more wriggle room in the darker cramped nether regions of our engine bays.
In fact a combination 1/4” and 3/8” drive set would be best

Thanks for the info everybody.

As for the socket drive size, I've had my socket set (which is a high-quality AF/Metric set) since I was about 18 and running an Austin A35, so over 50 years. It's 1/2". My torque wrenches are both 1/2" too. I also have a half-decent 1/4" set which I bought when I first got my TF about 7 years ago. I actually use that set a lot more. If I didn't already have the 1/2" stuff, I'd get 3/8" now.