Wrenches that are 25/32 sized .....

Crazy Horse · Oct 6, 2017

I see in my collection of somewhat older wrenches (box ends, open ends) there is often a 25/32" wrench. So slightly bigger than a 3/4" but smaller than a 13/16" ...... but you never see that size anymore I don't think. Was that a relatively common size at one time in the past? I don't think I've ever seen a 25/32" socket though.

JOCCO · Oct 6, 2017

There were several others too. I to have some.

fredfromwyo · Oct 6, 2017

25/32 was common size for IHC mower guard

Mike(NEOhio) · Oct 6, 2017

19/32, too. There used to be a lot more of the heavy hex type nuts on machinery.

TGP · Oct 6, 2017

Old Fords used a lot of those sizes also.
Tom

Traditional Farmer · Oct 6, 2017

A lot of old Allis Chalmers equipment had 25/32 and 19/32 bolt and nut head sizes.

Josh-nhihguy · Oct 6, 2017

Use an 11/32 wrench to change the points on the Farmall M and 450. Not sure if that's normal.

Steve@Advance · Oct 6, 2017

I've run across some of those old wrenches. Never found anything they fit though.

Still see the small sockets and packs of small wrenches in 32nd sizes. Occasionally find something they fit.

kcm.MN · Oct 6, 2017

I've got both the sockets and wrenches. Don't remember grabbing the 25/32" wrench, but have used the 1/2"-drive socket a couple of times.....just don't ask me what, cause now I can't remember. Been a long time!

Have used 19/32" wrench on several occasions, 19/32" socket a bit less - it's a little more common. I "THINK" on the 19/32" socket that it was due to a wider-than-usual 9/16" bolt head that was a bit flattened and deformed. In any case, you won't see me getting rid of them any time soon. Just never know when a weird size like them will come in handy.

CCer · Oct 6, 2017

A few years ago, my mothers car needed work. I didn't have the metric sizes to do the job. But I DID have those old 32" sizes, which got the job done!

M-MAN · Oct 6, 2017

These were used a lot on industrial machinery in times past. Heavy nuts used them. I've worn out several in my youth.

Dune Country · Oct 6, 2017

[called British standard. I've got a Daimler '64 SP250, a lot of the fasteners are '32's, yup, more tools to buy

Samtn1 · Oct 7, 2017

My dad had a box end that was 19/32 on one end and 11/16 on the other. Its been a long time, but if memory serves, you could take an old Ford engine apart and put it back together with that wrench.

JDEM · Oct 7, 2017

I have a new set of wrenches, 3/8" to 1 1/4" that cost me $25 and came from India and this set has 25/32", along with several other odd-ball off-sizes. That kind of surprised me. I thought those sizes came out of use in the 50s.

funky_g00 · Oct 7, 2017

I have complete sets of wrenches and sockets in the 32's sizes. As stated in other replies, they work great in substitution for metric sizes. 25/32=20mm still not a common size but I have needed it occasionally. 7/32=5.5mm commonly used on new ford and chevy body trim screws. 11/32 still commonly used for points and 3/16 and smaller nuts and bolts. 19/32=15mm common on about everything anymore. The oddest size I have is 31/32, this may be one size that I will not ever use.

620 John · Oct 7, 2017

I think I have found that size and a couple other odd balls laying around the farm. Never could figure out what they were for.

the tractor vet · Oct 7, 2017

Yep 25/32 was and old forgotten size along with 19/32 . Can't remember when the last time i used that size . Now the 19/32 was the connecting rod bolt size used in 428 S/CJ in 12 point .

BushogPapa · Oct 7, 2017

If you worked on British Motorcycles, you have WITWORTH-sized wrenches, too...

Never did figure how those matched, size-for-size..

dr sportster · Oct 7, 2017

I picked up a few Williams socket sets with odd sizes and they did quite well on eBay. Somebody wants them.

Flannelman · Oct 8, 2017

Its the guys working on Bell OH-58Ds and 407 Helicopters. The nuts that hold the transmission to the mounts are 25/32nds. Makes a guy want to go to Texas and smack an engineer. As it has been stated it's pretty much an extincted size. I've got a 25/32nd socket in a 1940's Craftsman set but nothing I have inherited or bought from the 60's on up has the 32nd sizes.

John Deere D · Oct 8, 2017

A 25/32 12 point 1/2" drive socket, is the required socket to remove the counter sunk COUPLING BOLTS on a KOPPERS # 10 Coupling. This Coupling is used primarily when high horse power requirements is transmitted.

My experience was with 15,000 HP General Electric J-79 / LM1500 Turbines. The Energy from the AFT of the J-79 / LM1500 Turbine was captured in a POWER TURBINE, converted to rotational torque so as to drive an Ingersoll Rand Natural Gas Compressor.

Bob...Retired Power Engineer Gas Generator Tech.

buickanddeere · Oct 8, 2017

The British did some really odd things. And the 455 Webly when they could have used the 45 ACP. They used Witworth threads too.https://en.wikipedia.org/wiki/British_Standard_Whitworth

Wrenches that are 25/32 sized .....

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