Resurrecting an 18 MO thread?![]()
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SAE for old tractors and farm equipment, metric for pretty much everything else.
Industrial, Heavy Machinery and Agricultural is still almost totally SAE. I have Metric at work but rarely use it but it is necessary.
I work in industrial maintenance. I have 3/8 sockets deep and standard up to 21 mm, combos up to 19 mm and metric Allen heads in socket and L key form. Compared to what I have in SAE that is nothing. Very rarely I will come across metric if machinery is coming from say Canada or Japan. Anything we build in our technical and tooling center is built as sae. Measurements are in thousands of inches when machining. Production parts are destructively tested in foot pounds. Welders feed wire in inches per minute. Smoke eaters **** air in cubic feet per minute. Presses are rated in regular old 2000 lb to the ton capacity.
Robotics are even mostly standard.
My dad's farm equipment is entirely standard and my buddy works maintenance at a Trucking Company and even the new stuff there is still mostly standard.
Which is how it should be. Metric is a terrible system for anything outside the medical field.
I have both out of necessity, but my 3/4 stuff is all standard and I have more large standard wrenches than metric, since the large stuff I work on tends to be old and standard.
I quoted above because I greatly disagree with that second sentence. Metric is a far more logical system of measurement than SAE, and coming from the medical field and into industrial construction, metric makes sense in the majority of applications...
Ironic that nearly 2 yr old thread is brought to life for BANNED member from Canada ??
The Banned OP was . . . . #1SomeGuy
Gotta have both
A) Standard and Metric wrenches, two sets of each
B) Standard and Metric sockets, short 6 point and 12 point metric and standard, deep 6 point and 12 point metric and standard.
I always wonder why people ask what they should get... How are we supposed to know what you work on?
Resurrecting an 18 MO thread?![]()
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****, i just voted on an 18 month old post...

Quite the thread revival... I have to provide SAE hand tools for work, metric tools must be purchased by the company. I mostly use SAE, because elevators use SAE fasteners, but escalators tend to use metric fasteners.
I quoted above because I greatly disagree with that second sentence. Metric is a far more logical system of measurement than SAE, and coming from the medical field and into industrial construction, metric makes sense in the majority of applications...
20mm is required for many GM air conditioning nuts - such as C/K/Silverado truck
Logical does not mean practical. Cut that board to 3,130.55 mm, or 313.055 cm, or 31.3055 decimeters. We could use it in foot/inch style: 31 decimeters, 3 centimeters, .55 mm. Or, you know, "ten foot three and a quarter" or 123 1/4 inches. Which one is easier?
Metric works alright for measuring small things and very large things and is unwieldy on everything in between. Inches and feet are damned handy units of measure, which is why they have stuck around for a very long time, and likely will continue to do so.
Metric works absolutely fine for fasteners, as they tend to be small. My beef with metric is that it's a solution in search of a problem, and it's forced practically all of us to buy two sets of tools for no other reason than someone somewhere thought it sounded "logical".
I reluctantly have both, SAE used to also be known as "standard".
I HATE the fact that US made vehicles now have so damn much metric **** on them.
I miss the days of only needing SAE. I especially hate when the same vehicle has BOTH on it.
