what MM socket is

[Marshwheeling]

I had shop class in 1962. If we called it a crescent wrench our shop teacher would correct us, "it is an open end adjustable wrench made by the Crescent Tool Company" We soon learned so we didn't have to hear him over and over.

My shop teacher called it a crescent wrench, and wrote it on the board so we wouldn’t forget: C R E S E N T
That’s when I knew it was going to be an adventure getting educated.

 

[Marshwheeling]

My metric 250mm Crescent wrench is right handed, but I have two 300mm, One is Right and one is ambidextrous. (My 8, 6, 4, 3 inch Crescent wrenches are older and only usable on standard American bolts)

In my grandfather's watch & clock repair tool kit there were a 1.5" and a 1.25" adjustable wrenches of the "F" pattern. He told dad years ago so, many watches and clocks have hand made nuts and bolts that there where no standard wrenches! (Oh how I wish I had granddad's tool kit!, gone to dad's second wife's hillbilly nephew!)

Ivan

If I ask you to hand me the metric ccrescent wrench, this is the one I want. The arrow on the far end of the handle shows you which way to turn it.

 

[Justin T]

Or take 20 C, multiply by 2 to 40, take off 10% = 36; add 32 = 68 F

Or take off 10% from the initial C reading of 20 = 18; multiply by 2 = 36, add 32 = 68 F

Saves having to do "long division/multiplication if you do not have enough fingers or matchsticks!!! Dave_n

I’ll have to take my shoes off and count mah toes for that.

 

[Jack Flash]

No brainer.
Standard vs. Metric
36 - 24 - 34 vs. 91 - 61 - 86

I always preferred to take those measurements in "hands".

 

[steelslaver]

I like metric for a lot of reasons, but, I cannot imagine trying to convert to metric in and oil refinery. The pipes and flanges are all SAE. New stuff could be made metric, then you would have to find or make adapters to connect on to old units and lines. Then you would need to stock both types of gaskets and studs. As there are already a zilion thatt would mean 2 zillion. They make some of it. I once connected a bunch of SAE piping to some metric compressors and driers in a aluminum plant. What a pain.

I also once built a trailer for a trailer mounted cone cock crusher. The crusher was metric and the plans for the trailer were in metric. No big deal? LOL. Plan calls out for side rails of a certain size metric wide flange, that works out to 22 1/2" x 11 3/8". Nearest you can get is 24x12. Now you need to adjust everything attached to the side rails. All your cross pieces are the same way. Everything you do need adjustments for the difference in material sizes. Certain spots have to be certain elevations, so the crusher sits right, clears, dumps and receives from conveyors correctly. I used up a lot of pencils and tablets on that job. It worked though.

 

[meaneyedcatz]

Use a Crescent wrench.

Also known as an,
ALL/16th’s

 

[Marshwheeling]

I like metric for a lot of reasons, but, I cannot imagine trying to convert to metric in and oil refinery. The pipes and flanges are all SAE. New stuff could be made metric, then you would have to find or make adapters to connect on to old units and lines. Then you would need to stock both types of gaskets and studs. As there are already a zilion thatt would mean 2 zillion. They make some of it. I once connected a bunch of SAE piping to some metric compressors and driers in a aluminum plant. What a pain.

I also once built a trailer for a trailer mounted cone cock crusher. The crusher was metric and the plans for the trailer were in metric. No big deal? LOL. Plan calls out for side rails of a certain size metric wide flange, that works out to 22 1/2" x 11 3/8". Nearest you can get is 24x12. Now you need to adjust everything attached to the side rails. All your cross pieces are the same way. Everything you do need adjustments for the difference in material sizes. Certain spots have to be certain elevations, so the crusher sits right, clears, dumps and receives from conveyors correctly. I used up a lot of pencils and tablets on that job. It worked though.

That crusher makes me nervous.

 

[Golddollar]

Can you judge the age of a woman in Metric?

Some friends from Australia give their weight in "Stone". My Brother raises horses, his wife's height is in "Hands". When we bought barbed wire for any of our farms it was in "Rods". Gun chamber pressure used to be in Copper or Lead Pressure Units (CPU or LPU) for America and TONNES for English. Torque was in Foot Pounds or Inch Pounds, now I see, several including: Newtons and Kilopascals (and the shade tree equivalent: "Just about there/oops!")

Ivan

When I was doing title examinations, I was working in a rural county that was going suburban. The old legal descriptions of properties were copied from deed to deed for decades. Here's some of the land measurements I dealt with:

1 acre = 43,560 square feet

1 perch or rod = 16.5 feet

1 square perch = 16.5 feet x 16.5 feet

1 acre = 160 square perches

And then there is the "rood" (not rod). The rood is an area measurement equal to 40 square perches or 1/4 acre.

And then there are the links and chains. Chains have 100 links. A chain is 4 perches or 66 feet long. A link is 8 inches or .67 feet. This is taken from a surveyor's chain.

If I wanted to plot the legal description of the property, I would have to convert all of these linear measurements to feet to make a usable plotting of the legal description. So now I'm an Associate Member of the Maryland Society of Surveyors since I worked in a related industry.

For working with all of these old measurements it has been insinuated that I was George Washington's rod man.

 

[DWalt]

Regarding adjustable wrenches, does anyone remember these?


I have several of that type in different sizes. I think they came in tool kits that accompanied Model Ts and Model As. Also the somewhat similar monkey wrenches, sort of a combination adjustable wrench and hammer.