just under 1/2"? i need to adjust my miter saw fence and of course it is metric. a 1/2" socket almost fits but slips when pressure is applied. thanks. lee
what MM socket is
- Thread starter Lee Barner
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ImprovedModel56Fan
US Veteran
12mm.....................
DWalt
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Use a Crescent wrench.
anoblefox
US Veteran
1" = 25.4 mm, so 1/2"= 12.7mm I think you need a 12mm wrench
OP
thanks. i can't get a crescent wrench in there or i would have. Lee
steveno
Member
everybody should have a vise grips
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I use 13mm pretty much interchangeably with 1/2”. If your fastener is under 1/2, then 12mm sounds right. I prefer six-point sockets for applications like this. A six-point 1/2” socket might turn a 12mm fastener where a 12-point would just skip.
Racer X
Member
sounds like a metric Crescent is what is needed.
I noticed om my last couple of Crescent Wrenches, that instead of 10" & 12" they were 250mm & 300mm. They just won't quit trying to make up French!
Ivan
steveno
Member
it is now a vise grips
Ole Joe Clark
Absent Comrade
I keep my metric set of tools in Ole Red, the 1995 Toyota T100, the inch set in the building and another set of tools in the house. I hope that I never have to use any of them. 
Have a blessed day,
Leon
Have a blessed day,
Leon
Well if you want a beautiful example of "how to use metric bolts/nuts without thought", what do you think was the first metric bolt on a GM Car about 35-40 years ago? They put a 25 mm bolt as the drain plug on the oil sump, so the regular mechanic's 1 inch would not fit and the 1.125" (1 and 1/8th) slid off.
Having grown up in the UK in the days of Pounds, Shillings and Pence and having used the metric system in high school in the early 1950s in science classes, I cannot understand the "push-back" in the US about using the metric system (when the currency is based on 10s), particularly when the US measurements do not match the Imperial system. For example, look at the smaller US Gallon versus the Imperial, and even the inch is a different size, as found out in a famous example when a bridge was built between Canada and the US and was found to be short; Canada used the Imperial Inch, the US the US Inch. Perhaps the most "famous" example in recent times was when a Mars Lander crashed because the US engineers forgot to transform the landing instructions to metres not feet. Dave_n
Having grown up in the UK in the days of Pounds, Shillings and Pence and having used the metric system in high school in the early 1950s in science classes, I cannot understand the "push-back" in the US about using the metric system (when the currency is based on 10s), particularly when the US measurements do not match the Imperial system. For example, look at the smaller US Gallon versus the Imperial, and even the inch is a different size, as found out in a famous example when a bridge was built between Canada and the US and was found to be short; Canada used the Imperial Inch, the US the US Inch. Perhaps the most "famous" example in recent times was when a Mars Lander crashed because the US engineers forgot to transform the landing instructions to metres not feet. Dave_n
Justin T
Member
In my line of work I need to be versed in both metric and US standard. Honestly, with pipe and fittings metric is much, much easier.
My weightlifting stuff is all done in KG.
The only problem I have is with F/C temperature conversions. Cannot figure that one out yet.
My weightlifting stuff is all done in KG.
The only problem I have is with F/C temperature conversions. Cannot figure that one out yet.
H Richard
US Veteran
I'm pretty old school, but wish I had been taught metric in school. When trying to draw up any plans to do anything I find metric much easier to do. But since I didn't grow up with it I can''t visualize CM and Meters like I can inches and feet.
I was stationed in England back when the monetary system was Pounds, shillings and Pence. I'm not sure if I ever received the correct change.
I was stationed in England back when the monetary system was Pounds, shillings and Pence. I'm not sure if I ever received the correct change.
Shooting Padre
US Veteran
Metric/Standard Crescent Wrench
I have one of those combination metric/standard crescent wrenches. As if grow older I find my hands are no longer steady and as they tremble the wrench keeps switching from metric to standard setting. Any suggestions on how to prevent this. My medications only seem to acerbate the situation.
Thanks
I have one of those combination metric/standard crescent wrenches. As if grow older I find my hands are no longer steady and as they tremble the wrench keeps switching from metric to standard setting. Any suggestions on how to prevent this. My medications only seem to acerbate the situation.
Thanks
Mercury
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This is the only metric conversion I keep in my head for temperature:
16 degrees Celsius = 61 degrees Fahrenheit
Jack Flash
Member
My main problem is engine displacement. When given in cc or liters, I am blank for awhile. I grew up with it in cubic inches and that's what I need.
When I learned that a Ford V-8 305 (cu. in.) is 5.0 liters, I finally memorized 1 liter is roughly 60 ci.
That made me think of my trip to England & Scotland four decades ago.
I was living and working in Detroit at the time and had to count my change religiously as the shopkeepers there were notorious shortchange artists. Sometimes they would try to shortchange you by as much as a buck!
So of course I continued the habit of counting my change while in the UK. One day it just hit me that my change was always right, right down to the penny. I quit counting my change because it didn't matter. It was kinda nice to live like that.
vytoland
US Veteran
The temperature T in degrees Celsius (°C) is equal to the temperature T in degrees Fahrenheit (°F) minus 32, times 5/9:
T(°C) = (T(°F) - 32) × 5/9
or
T(°C) = (T(°F) - 32) / (9/5)
or
T(°C) = (T(°F) - 32) / 1.8
Example
Convert 68 degrees Fahrenheit to degrees Celsius:
T(°C) = (68°F - 32) × 5/9 = 20 °C
DWalt
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And -40 degrees C = -40 degrees F. And then there is absolute temperature, degrees Kelvin and Rankine.
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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
The only one I remember is that -40 =-40. Useful occasionally in MT.
Bucher33
Member
Did not specify if right or left handed Crescent needed as well.
ImprovedModel56Fan
US Veteran
Doesn't matter. He can always turn it over and use the other hand.
Being old and hard headed, I resisted the metric push for years. A few years ago I was getting ready to build a (very fancy) hunting blind and, on a whim, decided to build it totally metric. As hard as it is to admit, it was a lot easier, faster, and more accurate than the inches method. It was so nice to measure without fractions. Since that discovery, everything I build from scratch gets built metric. Not sold yet on the other metric measurements.
I have a set of Whitworth/BSF sockets from Snap-On. I can count on my fingers the times I have needed them in 40-odd years, but when I did need them, I really needed them. I never could justify adding a corresponding spanner set from Abingdon King Dick.
Snap-On six-point sockets will often work quite well on fasteners from the other systems. The ends of the flats are relieved at the corners so that the socket always bears on the flat of the fastener, never the corner. Called Flank Drive, it is the reason Snap-Ons will loosen fasteners that other wrenches will just round off. Metrinch tools work on the same pribciple, but the purpose there is to give a sloppy but effective fit on fasteners from any corner of the universe.
Snap-On six-point sockets will often work quite well on fasteners from the other systems. The ends of the flats are relieved at the corners so that the socket always bears on the flat of the fastener, never the corner. Called Flank Drive, it is the reason Snap-Ons will loosen fasteners that other wrenches will just round off. Metrinch tools work on the same pribciple, but the purpose there is to give a sloppy but effective fit on fasteners from any corner of the universe.
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
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
anoblefox
US Veteran
I have an adjustable wrench (bacho spl?) that came from Sweden; the problem for me is the adjustment wheel requires the opposite direction (compared to a Crescent brand) to close the jaws and messes me up. So it remains unused in a seldom used drawer in my tool box.
soFlaNative
Member
No brainer.
Standard vs. Metric
36 - 24 - 34 vs. 91 - 61 - 86
Standard vs. Metric
36 - 24 - 34 vs. 91 - 61 - 86
