1 3/16 worked , 30mm did not.

[toolaholic]

When I tighten the hose connection to my AR TRXX the inner fitting loosens. When I loosen hose connection inner fitting tightens. Figure I can use the 2 service wrenches like a router collet to tighten tighter for no leaks. 1 inch wright service wrench fits inner fitting . 30mm does not fit outer but 1 3/16 does even though it’s only .006 bigger. A 31mm is a little sloppy. I’m assuming the difference between the 30mm and 1 3/16 are bigger than .006 due to wrench tolerances . https://toolgrotto.com/socket-set-conversion-chart/

 

[Kscardsfan]

How old or used are the fasteners you’re turning on? They look to be in decent shape, so maybe the tolerances are that tight.

 

[toolaholic]

How old or used are the fasteners you’re turning on? They look to be in decent shape, so maybe the tolerances are that tight.

Pressure washer from 2006

 

[gigamel]

Time to bring out the old caliper - it's a bit unusual to find a 30mm wrench that do not fit a 1 3/16" nut/bolt, but it's possible.
30mm wrench is between 30.08mm and 30.48mm.
1 3/16" nut is less than 30.163mm.

The only true equivalents - every wrench will fit every nut/bolt of the equivalent size - are:

1/8" and 3.2mm
5/32" and 4mm
5/16 and 8mm
3/4" and 19mm
1 1/16" and 27mm
1 3/8" and 35mm
1 1/2" and 38mm

Yep, not every 5/8" wrench will fit every 16mm nut/bolt, but the majority will.

Personally I go by the same "equivalent" list as seen in your link - actually I go a bit further and measure my tools -I have a 1/2" combination wrench that measures 12.97mm open and box - gives a nice snug fit on all most every 13mm nut/bolt.
And yesterday I used a 14mm (measures 14.26mm) comb. to remove the blades on my Craftsman lawn mower for sharpening - the bolt heads are 9/16" and kind of rusty so less chance of rounding them using the snug fitting 14mm.

Regards

 

[Ign]

Yeah I think it's impossible to set standards 'cause every wrench manufacturer seems to vary on how much over nominal they build the wrench.

edit: this is GJ so we all know we need 1-3/16" and 30mm (I have both)

 

[jsteih]

1-3/16 = 1.1875

30mm = 1.1811

 

[gigamel]

Yes, but a 1 3/16" nut is <= 1.1875

And a 30mm wrench is not 1.1811, but in the interval 1.1843 to 1.200 - most 30mm wrench/sockets will fit a 1 3/16" nut/bolt.

 

[pi_guy]

Over the years I have found things are oversized or worn and some tools that fit better than others. Been one of my arguments for a full tool chest.

 

[BlakeTheCarGuy]

That’s pretty interesting. Usually they are pretty close.


Sent from my iPhone using Garage Journal

 

[joel63]

Over the years I have found things are oversized or worn and some tools that fit better than others. Been one of my arguments for a full tool chest.

IMHO It's really difficult to argue this point.

 

[Gunfixr]

The wrench that fits, is the one that's used............

 

[toolaholic]

Just got a set of urrea service wrenches and that 30mm fits

 

[Jbullfrog]

I used to use 1-3/16 wrenches on Ford tractor AC fittings regularly.

 

[gigamel]

Just got a set of urrea service wrenches and that 30mm fits

Did you measure the fitting and wrenches - just curious

 

[toolaholic]

Did you measure the fitting and wrenches - just curious

I can tonite. I have a caliper .

 

[cherrybomb]

I always use my caliper as a valuable tool in my arsenal.There is tolerance in fittings,wrenches. Use what fits the best,it doesn't matter what is stamped on the tool.Your buddies don't care if you use a 3/4 or a 19mm.Wrenching isn't rocket science.

 

[toolaholic]

The nut

 

[toolaholic]

The craftsman 30mm (under 30) and the Wright 1 3/16

 

[gigamel]

Under 30mm, that will make it hard to fit a 1-3/16" (or a 30mm)
I found one at 30.44mm
Three around 30.35mm
The majority around 30.25mm
And one at 30.12mm - so all but one is garanteed to fit a 1-3/16" nut/bolt/fitting.

 

[bonneyman]

IMHO It's really difficult to argue this point.

Agreed!

 

[pi_guy]

IMHO It's really difficult to argue this point.

Yes but you will always run into somebody who claims cheap and minimalist modes and claim a vise grip will cover all the sizes.....

 

[Blue98GT]

Glad you found the Wright tool for the job.

 

[joel63]

Yes but you will always run into somebody who claims cheap and minimalist modes and claim a vise grip will cover all the sizes.....

That's for sure.