vc commodore
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Here is a list of interchangeable sizes. 14mm equals 9/16 any size bigger other than 15mm, 18mm and 20mm will line up. All the sizes smaller have issues some times 1/2 can be used as 12mm but not always.
Now **** off.
14MM on an old school 9/16 won't fit...Classic example, Holden red 6 the 3 thermostat housing to head bolts
12Mm on an old school 1/2" won't fit...13Mm will round the head off..Classic example...Holden red 6 4 fan to water pump bolts
17Mm on an old school 11/16 rounds the head off...Classic example...Holden red engine mount to k-frame nuts....(Held in place by a nut and bolt)
19 Mm on an old school 3/4 rounds heads off... Old school Holdens had a 3/4 wheel nut which held the wheel in place....I quite often saw signs where the 19 MM socket had been forced over the wheel nut, because it didn't quite fit the nut
21MM on an old school 13/16 rounds heads off..Old school long shanked wheel nuts were 13/16 and it was quite common young mechanics used a 21Mm socket to remove these and actually round the head off, which made it extremely difficult to remove the wheel nut as they had a habit of corroding inbetween the shank and the wheel nut hole
10MM on a 3/8 won't fit....Classic example is manifolds on ecotecs....Now YOU should know that, if you are a mechanic, which is why I asked that specific question
I love your responses when an old school spanner spinner with no pieces of paper shows your are incorrect, especially when you bang on that you spend years getting a piece of paper and squillions of dollars on tools....To me it shows you refuse to learn from old hands....
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