MECHANIC MATH - Standard wrench sizes made EASY

[@beepbeep4287]

thank you, man! very helpful. i really didn't pay attention on math when i was in elementary

[@Dezzylyricz]

I really appreciate your lesson, working on cars is my passion both my Dyscalculia and dyslexia have made it difficult to learn, ironically I sell tools and hardware. I build a lot of appliances at work(usually metric.) Greatly appreciate any lessons Professor. Thank you for sharing

[@eddiegonzalez254]

Whats the difference between a 7/16 standard &a metric

[@cevenpentecost1450]

Thank u man was embarrassed the other day when I was at my uncles

[@swarajkumarks8261]

Now onwards I stop searching for 'which is the next one?!!' Thank you.Very informative👍

[@rowesamuel8586]

Thanks for this video man, started working at a shop. Grown up using the metric system and I never understood standard. This really dumbed it down for me. Great video!

[@dummkompf]

yeah, I'm with the guy you were speaking to. It's easy to figure out what the next size should be if your set always moves up in even increments. But I have a couple sae sets and neither of them are like that - the next increment may be up/down by 1/16, or by 1/32, or even by 1/64. And I don't use them often enough to memorize which sizes I have in 32s or 64ths so I always have to do 3 conversions to figure out what the next size might be depending on how big of a step I gotta take. If your set does move up in even increments of 1/16 every time, then it's easy to do the math to figure out what the next size up/down should be but even that i's still a pain in the ass.

[@ZTen7h]

right on. know the exact metric sizes.

[@Ces999919822]

I just look at whatever needs torqued, then eyeball it. I’m usually accurate within +/-1 size up or down. Then grab the correct one and go to work. I grew up on a farm, so I’ve done everything from tractor, implements, trucks, trailers, atv’s, home repairs, you name it. After awhile, you get pretty good at eyeballing things. It’s really not too complicated. Stripping out a few nuts is a great learning opportunity.

[@newlion7013]

metric all day, sae thing of the past

[@MrPanetela]

Metric vs SAE; Which is better? Metric system invented in the 17th century, is based on one ten million the distance between the North Pole and the Equator. They believed then that the Earth was uniformly stable. The distance between the pole and equator does changes, thus invalidate their argument. It changes as the moon passes over head, or during a 7 and over earthquake. Slight changes in gravity also changes the distance. And if the Earth's rotation speeds up, then the equator bulges more, stretching the distance between it and both poles! The SAE, the modern version of the Imperial System, borrowed from the Roman Empire, who borrowed it from their neighbors such as Greece and Egypt, is not based on the abstract distance between pole and equator, but on human proportions. The British inch is based on the distance between the poles directly thru the earth! This is the only place on any planet that is stable. It is commonly referred to as the planet/star/galaxy axis. Therefore, the inch is applicable anywhere in the universe! both systems have advantages. In fact, out of jealousy, the Metric system now uses decimal fraction, something they were trying to avoid in the first place. So instead of 1mm, 2mm and so on, they now have 1mm, 1.5mm, 2mm, 2.5mm. So much for uniformity... The only uses, I have, for metric, is it's ability to easily interchange between other measures. That is one centimeter dry volume to a liquid one and so on. The SAE system has a very lengthy genealogical history, one that is older than the Sumerian empire, maybe even invented by Adam and Eve themselves...

[@spevakdesigns]

I came to this video thinking you were going to present a relatively straightforward mathematical way to determine the wrench size for a given bolt size. Didn't realize we were doing a fraction lesson. I've had a few younger apprentices who weren't great with 1/8s and 1/16s and I'd have them write all the 16ths from 0 to 1 out on a piece of paper, then three corresponding 8ths and 1/4s underneath those. We'd do it every day until they were able to do it on their own.

[@MrDredd1966]

Using metric wrenches you don't have think its that simple!!

[@GH-oi2jf]

People with poor thinking skills should stay away from machinery. It could be dangerous.

[@tarassu]

Bring me 1 19/32 Wrench..Oh sh.... bring me one step smaller. .that is 1_2x19/2x32=1_38/64, so one step smaller is 1_37/64 or 1_36/64=1_18/32=1_9/16? Bring me the god damn wrench. So I bring him 1_9/16 and 1_37/64 because BOTH are one step smaller. Except if you have a set in eiths. Then one step smaller would be 1_19/32-1/8=1_19/32-4/32= 1_15/32. MEANWHILE IN METRIC SYSTEM. BRING ME 40. oh sh.. bring me 39.

[@GH-oi2jf]

Typical contrived problem. At one inch and up, there are no steps finer than 1/16”.

[@masterisan6707]

Im just trying to fix my bicycle 😂

[@avxrevo]

Isaac The Goon well thank god almost everything on bike are metric lol

[@Aigentcy]

Get bike wrench multi-tool

[@promoe9148]

😂😂😂

[@onlyAngil]

Me too

[@taperwarrior381miguelblack2]

15mm

[@victorialewis2813]

so thankful! taking a test and had no clue where to start so I put in the search bar fraction wrench and your video came up! Now I understand!

[@DEInTheGarage]

Glad it could help you!

[@hillcountrygarage]

Good explanation. Thank you.

[@PopExpo]

Standard reminds me of my grandpa and grabbing his wrenches for him. Metric is just more streamlined. Like you said, you can work on a toyota with just 4 wrenches.

[@darkinertia2]

i mean, your friend is right lol even when i was a kid growing up id look at the metric sizes and it was clear what the next size was gonna be from 7mm, then i look over at the sae set and i see all the fractional shit that i hate doing in math class at that time lol we have torx down to numbers i dunno why we cant at least do the same with fractional

[@savage22bolt32]

From experience, I used to look at the hex head, and always grabbed the correct wrench. Now I'm so old, my eyes ain't so good, so before I crawl under my Jeep, I grab 6 wrenches; the US standard and metric ones I think are correct, and the next size up and down. That way I don't have to get up & down off of the ground so many times!

[@sonnycush2290]

I've been using your system - of math - for almost fifty years, and because it's so easy to work the fractions in your head I tend to avoid metric!

[@tinamarie4875]

It's still a bit complicated. It is easier to just gradually go up or down in a numeric form than having to divide or multiply fractions.

[@kujo4003]

I'm from australia and metric is the standard though we do use imperial it's a pain in the arse

[@anupshende1986]

Absolutely!!

[@nidgeoce7841]

Imperial doesn’t make sense and it’s so unnecessary to job around different loopholes when in metric you can get the answer straight away

[@stopdrinkingleftskoolaid6510]

Perfect example on getting the next size up or down. Perfect. Thank you

[@badbiker666]

I bought a vintage set of 1/2" drive sockets from the 1940s. I was surprised to find that it included a 25/32 and a 31/32 socket. Also several 8 point sockets, the largest is 13/16. I have shown this socket to a number of people, some of them old timers, and no one has ever seen a tool like that. And from the look of it, it has been used! Not much, I'm sure, but it didn't sit in a box unused for 80 years.

[@robertgrauman8602]

I asked my Dad back in the day how high the bottom numbers went on sockets and wrenches. He said they used to make ones that are 32nds and 64ths. He also said that they aren't common because some of the 32nds and 64th sizes correspond with metric sizes. I don't remember if the conversation went further that that, but looking back my take away is that the 32nd and 64th sizes were an attempt to have standard wrenches that could turn metric fasteners without buying metric. And at some point someone realized that having standard sets that went to the 16ths and a complete metric set is more practical. That being said, there is some overlap on sizes, metric to standard. So if you're tight on space you can get a set of one or the other, and pick up the sizes that are in between.

[@DEInTheGarage]

Very interesting.. The only time I ever use my 32nd sizes is when it is a metric bolt and I cannot find the correct metric size, so that definitely checks out

[@ourv9603]

On the wall in my shop I have a chart I got off the internet which shows inch-metric-decimal. You could also tape this chart inside the lid of your top box. !

[@mirukuchan]

Thank god it's elementary school math that was the only time I was a good student 😂

[@darionallison157]

This is helpful thank you

[@ihavecojones]

Yea because why would you use a simple system that is less prone to stupid math mistakes? But bro, it's part of our identity. But it's stupid, makes no sense, and it's really cumbersome and prone to errors. YOU SAYIN THAT MURRICA AINT THE GREATEST COUNTRY IN THE WORLD? USA USA USA USA ...smiles, nods and walks away like a total weirdo.

[@frankjames4743]

What size wrench is for a 3/8 bolt? Great video.

[@mtronaut1694]

It's not difficult, but it's simply impractical and unnecessary. Major part of cultural identity? Don't think so, most people wouldn't miss it for very long...

[@lcarrasco212]

Don't know where you're from but... We use inches and feet to measure almost everything in the United States. Our measuring tapes are in inches and feet. So when it comes to SAE (Inches) wrenches, it's not hard for us to know which size is next. Leave it to the ol' USA to be different, where we use inches, miles, pounds and don't call soccer, football lol

[@GH-oi2jf]

They would if you took away their SAE wrenches and they had to work on an old tractor or something. There is an immense amount of machinery using hardware dimensioned in fractions of inches.

[@dutchleussink156]

Forgot all about that Thank You.

[@curtpiazza1688]

Good lesson...thanx!

[@smallnuts2]

im 42 and im at the age of tired of guessing or going through my whole tool set, to have a match. lol still need to learn a tape measure as well. I realize I never had to use this until I started making things around my house.

[@cheese5331]

Thanks

[@thebrizzell]

This is a video I'm unsure of whether I get it or not until my 3 day week end is over... Baggage Handeling Systems Jr Tech. .. Thanks

[@jeremy1234151]

I bet that 10mm puts in work. Thanks for the video.. I was more trying to learn what size wrench for the different size bolt. Hopefully you have something on your account for me.

[@dolinick]

listen i would buy a set or metric wrenches but converted to imperial units. do it. i know the ratios will be crazy. just do it.

[@joshuasymonds3258]

Thanks for this, I'm English and these spanner sizes are slightly uncommon but I stumbled upon a set in my dad's shed when trying to find a 9mm spanner and I just stood there all confused and stuff so I went with an eye guess lol.

[@nebd6167]

I luv u, brah! Misery averted! 😂

[@brucenunn3268]

Thank you for this. Was definitely helpful. 👊😎

[@stephenh5166]

Ha I've just had the darned things lined up in a drawer my whole life. If the one in my hand is too big or small, I just grab the one adjacent. Never have I thought about even trying to figure it out mathematically, but this this a nice trick to do that. Maybe this'll save me a few trips to the toolbox from now on.

[@dolinick]

what is a 1mm 2 3 4 5 6 7 8 9 10 11 12 13 etc in imperial nonstandard units??? someone please do this for me!

[@MarcoS-yd9pf]

love the comment at the end ha ha-can always just use an adjustable wrench for everything. Ha ha

[@puregsr]

All Americans are math geniuses, basically

[@Donthetoolman]

Great video by the way very informative

[@anthonygm85]

Also witch sizes almost match up sae to metric but always better to have the right tool for the job still

[@DEInTheGarage]

Yea bud, I have stripped many a 9/16 by being to lazy to not use the 14mm i already had in my hand

[@saisokuhashiriya8069]

That's hard for guy like me to understand that..because i only know metric since born......

[@DEInTheGarage]

Yea, fair enough

[@MatthewHolevinski]

For us americans, generally speaking with the crews I run with we can do weights/balances/measures in imperial a hell of a lot faster than we can move decimal points.

[@andrecastro8387]

I come from brazil and we use more metric than imperial over there. I have just arrived in Canada and they use matric and it’s making me crazy

[@TruthSeekerAi]

dope share thank you

[@Sweshification]

I have learned more from youtube than I did from school lol

[@genisawild]

Thank you for the explanation....👌👌👌

[@renaldosimpson8755]

Well how do you convert them to mm like what if I had a 10mm bolt but all my tools were only available in standard? Don't get me wrong this did help alot but how would you go about doing it.

[@DEInTheGarage]

There is no clean equation to convert standard to metric. They don't correlate like that. Here is conversion chart you can use www.engineeringtoolbox.com/wrenches-inches-metric-us-conversion-comparison-d_1607.html Once you have worked with both for a while you will learn which sizes are close. i.e. 3/4 and 19mm are almost exactly the same, 1/2 in right between 12 and 13mm, etc..

[@ZTen7h]

1 inch is 25.4mm.know the exact metric sizes and you can convert mm to fractional or vice versa. so look at 2 inches and 3/4ths and convert to mm. we know that 1 inch is 25.4mm so 2 inches is 50.8mm,right? then look at 3/4ths which is 19mm. 50.8mm plus 19mm is ?

[@GH-oi2jf]

Here’s a chart: www.garagetooladvisor.com/hand-tools/wrench-sizes-order-smallest-largest/ There is no good substitute for a 10 mm. It is better to have the tools you will need for any job.

[@anthonygm85]

I taught the young guys sae math with a tape measure and stright edge

[@xlilnetx]

Who u trying to fool the standard system is garbage that’s why it’s not widely used

[@Aigentcy]

It's still confusing unless you know the tape measure or just test a couple sizes larger or smaller troubleshoot process of elimination

[@puregsr]

Or you become like me. I'm 41 and I'm not old enough to have SAE sizes imprinted into my brain and too old/lazy to do math. I just hate SAE fasteners while working on cars, you ended up rounding off bolts or wasting time. Why o'why car manufacturers do you do that? I can literally take apart my Mazda with 5 wrenches. But my GM cars throw odd metric sizes here and there, irks me on the lack of cohesiveness of the design, just like our society.

[@GH-oi2jf]

If you keep your wrenches in order in a pouch, the next size up is the one in the next pocket.

[@julieoliphant1615]

I can show students how math creeps into fixing cars! That’s good because most boys like cars.

[@AmrikSingh-rw6ew]

What is next size of 11/16 does not explain were you start don’t make any sense to me

[@DEInTheGarage]

12/16 which when reduced is 3/4

[@AmrikSingh-rw6ew]

D&E In The Garage got it thanks

[@ZTen7h]

11/16th or 11.1mm. next its 29/64ths or 11.5mm. next its 15/32nds or 11.9mm. next its 12.3mm or 31/64ths and then 12.7mm or 1/2 inch.

[@GH-oi2jf]

@@ZTen7h - Odd multiples of 32nds are unusual and of 64ths, almost nonexistent.

[@isaiasgutierrez8788]

So you're trying to say that all that math is easier than just looking at the next number up on a metric?

[@ZTen7h]

.3mm is 1/64th and .7mm is 1/32nd.

[@GH-oi2jf]

No, it’s .4 and .8 mm, approximately.

[@nate35828]

How do you know if a Bolt is standard or metric

[@MrPanetela]

there is a variety of ways, a sizing card, found in any big box hardware store... look for the letter m on metric bolts, or U.S. specs on standard SAE inch bolts... using a vernier...

[@puregsr]

You usually don't, just have a bad feeling and too lazy to go grab another tool to try, then you strip the bolt, it's a total pain

[@swarajkumarks8261]

3/8 next is 7/16 I understood by your explanation.Bro but will you pls give explanation to find next size of 7/16? here denominator is 16.

[@DEInTheGarage]

Do you mean like 32nds, 64ths, 128ths?

[@ACitizenOfOurWorld]

8/16 (or 1/2) would be the next size up from 7/16.

[@ZTen7h]

3/8th or 9.5mm then 25/64ths or 9.9mm, 13/32nds or 10.3mm, 27/64ths or 10.7mm then 7/16ths or 11.1mm.

[@bellabogen9547]

my boyfriend doesn’t know solve math during his army mechanic

[@wissamharb5684]

Shocking that you have to explain this to adults😂 I'm french educated. Whether you paid attention in class or not they make sure this shit is in your blood

[@PopExpo]

Imperial and SAE are not the same system either. Imperial is the former system of the UK. SAE is the Society of Automotive Engineers.

[@josephisblessedallhonorngl2511]

Real talk I'm pretty good at math or no let me rephrase I suck yet my accountant wife can't round off so it's weird because we will go grocery shopping with a set amount and I will say stop we are about there n since she has the degree. Nope n we go n pay over . It doesn't compute to her how I know it's not a magical power . But I wish I had paid more attention in math class. Instead of just remembering 16 oz is a lb.

[@Karv3r]

Man, imperial is so fucked up

[@megadethguym7977]

Another waybeasier to remmember is to take takeba picture of a chart with your phone and and when your stuck on a size you dont know look at your phone it is the eaziest way to learn and remmember the sizes to me anyways your not gonna use all this math when your on working and teying to be fast

[@MrPanetela]

actually it's much simpler than that. SAE sockets are based on 2. Metric sockets based on 10. SAE is in fractions, fractions are numerator over a denominator. Therefore, the bottom number is always a multiple of 2's. 4ths, 8ths, 16ths, 32ths. The top number will always be a number plus 2. It's one's digit will always be 1, 3, 5, 7 or 9. from this information, you can build a simple periodic table of SAE socket sizes from memory! This is why D&E In The Garage said it just happens if you do a lot of work around cars/machines it just makes sense without having to spend a lot of time learning it the way you do with metric. He didn't start out to memorize stuff, it just simply fell into place because SAE is just as simple and logical as Metric's. It's one big advantage over metric is it is intuitive.

[@izzarulhadi5163]

gotta admit, if you learn it will be easy. but thats the problem, u have to learn basic stuff. if u give a kid spanner to try a bolt and he said "its too small" then he can figure out by looking at the metric sizes. if 12mm is too small, then he would naturally go up the size to 13mm or 14. even a kid can figure out

[@GH-oi2jf]

In the United States, children learn fractions starting in the third grade (age eight). School rulers are marked in both inches with fractions and cm-mm.

[@puregsr]

Or you become like me. I'm 41 and I'm not old enough to have SAE sizes imprinted into my brain and too old/lazy to do math. I just hate SAE fasteners while working on cars, you ended up rounding off bolts or wasting time. Why o'why car manufacturers do you do that?

[@jeramiah8820]

YESS THANK YOU 🙏!!!!

[@warhawg9564]

So you just ended the conversation with your friend instead of educating him? I dont understand why people dont try to help their fellow friends learn too

[@tarassu]

I paused to laugh at 3:56.

[@ultramanxk7]

The only thing I was good in math, was to add up my test scores to the minimum passing grade, so I won't fail.

[@user-xb9il7jh5b]

You no good master

[@kevinansell9341]

Metric, Easy-----Imerial or Standard, Grab a Pen & Paper, Slide Rule, Calculator and you high school Math teacher and job a good'n pmsl

[@mendez_guzman9661]

You going to fast bruh😩 soon fraction will be my best friend 😤

[@Briansantiago11]

but why tho... why do we need to put in this much effort to learn a wrench when you can easily say hey! 10mm don't fit its gotta be a 12. simple.. I hate imperial with a passion

[@lknjohnp]

I just threw them in trash and keep the metric ( why they call it standard)

[@DEInTheGarage]

So I guess what you have an SAE fastener to remove you just…. Don’t?

[@michaelguthrie2344]

What a waste of time and energy using an unnecessary system.arent you embarrassed to say you like it?😅

[@ZTen7h]

The metric sizes are all approximate sizes and not exact sizes. Learn the exact sizes. 14mm is used for 9/16ths but the exact size is 14.2mm. There is no such size as 9mm.its 9.1mm(23/64ths). metric sizes go up by .4mm so if we start at 1.1mm which is 3/64ths then the next size is 1.5mm which is 1/16th. 1.9mm is 5/64ths. 2.3mm is 3/32ths. after 1/2 inch or 12.7mm is 13mm or 33/64ths. 13.4mm is 17/32nds. 13.8mm is 35/64ths. 14.2mm is 9/16ths. this pattern goes to 25.4mm or 1 inch .basic math.

[@GH-oi2jf]

Where is the authoritative document that defines the nominal sizes and the actual sizes of metric wrenches? When I browse trying to figure it out I get conflicting information. For example, one table suggests that 12mm does not exist, but I have a Proto 12mm combination wrench. I measure it with a vernier caliper at 12.1 or 12.2mm.

[@aecrim1969]

Or you can just memorize it, like the alphabet. What i really don't understand is why mix SAE and Metric on an American vehicle. SAE - pride, Metric - stupid. Proud + stupid = ?

[@GH-oi2jf]

There isn’t much mixing any more. Vehicles have mostly metric hardware, and the SAE sizes are well hidden. I think the nut on a spark plug is always SAE on American vehicles. The square drive on tools is SAE. What do European mechanics call the drive sizes?

[@GH-oi2jf]

A common spark plug nut size was once 13/16” but on my current GM vehicle it is described as 16 mm. This is slightly larger than 5/8”. The consensus is that a 5/8” socket works. I hate uncertainty like this. I’d rather they just call it 5/8”.

[@MrPanetela]

I use both. However, Imperial predates Metrics. It predates the pyramids. The megalithic structures, all made with Imperial measurements. God exclusively uses the Imperial system. Check your bible if you don't believe. Both Jesus and the Roman empire had to have used the imperial system. They didn't call it that, but that is what they used. For centuries America relied on the English imperial system based on the Roman, based on the Egyptians and so on. So the Imperial system has a prestigious pedigree The Imperial system is ultimately based on the diameter of the earth from pole to pole, which is a very stable system. However the Metric system is based on the circumference which changes over time. The big Japan earthquake actually changed the circumference of the earth. Which is why they are now re-adjusting the metric system again. If the circumference of the earth has change, then everything on the earth is either lengthen or shorten a tiny amount. Thus throwing everything off a tiny smidgen. A large mass has that effect. However; the distance from pole to pole remains the same! like I said, I use both. So why is it so important to argue about it? but then again there is road rage, so maybe some day we'll hear about tool rage as well...

[@ihavecojones]

P.s. the meter is based on the distance light travels in a given time. What would you expect from people like you.