Slim wrenches

Ivan in Mich · Aug 4, 2017

I bought a box of tools many years ago at a sale. The person that owned them worked as a maint man in a gravel pit on heavy equit. All these wrenches just the head and all are round down to make them thinner. I had some in my tool box in the Army but don't remember what they were for. Are they worth anything and does anyone know what they are called. They are like a crows foot wrench but do not have the slot for a breaker bar. These look like the take a handle like a cheater pipe

TimV · Aug 4, 2017

Lots of things they could be, but one use of large, thin open-end wrenches is for driveshaft lock nuts.
thin open end wrench

Ivan in Mich · Aug 4, 2017

These do not have a handle on them. There is a stub about 3 or 4 inches long which has a slight taper to it. He worked in a gravel pit so I am wondering if they were for a rock crusher. His brother told me at the time he bought them all ground like they are

300jk · Aug 4, 2017

Sounds like specialty tools. I need to make up a 1 1/2" wrench for working on our concrete crusher at work. It only needs to be 6" long. Tight area. Need to tighten jam nuts then I weld them so they don't loosen so they don't have to be real tight, just snug. Lots of tools like that used in quarry applications ! Reason I need to make another one is my helper "misplaced" the last one. I just take a wrench trace it out on a 1/2" plate and cut it with a plasma cutter. Grind to fit. Lot cheaper than buying actual wrenches and cutting them !

timcasbolt · Aug 4, 2017

I have a couple tappet wrenches that are very thin.

Charles in Aus. · Aug 4, 2017

Look for ' Slogging wrench ' in Google Images .

Ivan in Mich · Aug 4, 2017

These are similar but they don't have a handle on them that long. These are not small wrenches as
most are 1 1/2 inch and up sizes and are open end. I have one here that went with an old JD dozer
that I had to adjust the tracks but it is a crowsfoot

steve706 · Aug 4, 2017

Are they like this?
<image src="http://forums.yesterdaystractors.com/photos/mvphoto1521.jpg"/>

Ivan in Mich · Aug 4, 2017

No they look like a regular ope end wrench with the head cut off. I found one similar that fits a torque wrench handle

gab · Aug 4, 2017

Found this one, 1/4 inch thick, don't know what it's intended use was but stick a pipe on the end and it's an excellent tie rod remover for GM trucks and several cars.

D beatty · Aug 4, 2017

I have a full set of Craftsman valve tappet wrenches that real thin.

NCWayne · Aug 4, 2017

If they are like the ones in the link, they are designed mainly for use to tighten jam nuts, the nut on SAE O-ring style fittings, or for use anywhere else a standard thickness wrench won't fit.
Ultra thin wrenches from Proto

D beatty · Aug 5, 2017

This is what the set I have look like and I think they are from the late 30's or early 40's.

dr sportster · Aug 5, 2017

Proto calls them Tappet wrenches . I have them for Harley tappets.

alskdjfhg · Aug 5, 2017

I've got a set of wrenches like that, but they made out 3/16 sheet metal.

One of those things that are supper handy on the weird, once in a blue moon jobs that come up.

wisbaker · Aug 5, 2017

I would guess they are wrenches for hydraulic fittings and hoses, on some industrial (and agricultural equipment for that matter) you need thin wrenches, some times for nothing more than to hold the fitting screwed into the manifold still while you attach the hose or tube fitting

Ivan in Mich · Aug 5, 2017

I think you may be right on these. I also think they may be used to tighten or loosen a jam nut. They were made by Williams. I tried some of the smaller ones on some hyd fitting and they fit. I wish I would have remembered that I had they a while back as I had need for one of them. Thanks everyone for making me think

Dusty MI · Aug 5, 2017

Tappet or valve lash wrenches for the old flat head engines.

Dusty

kevinthefixer · Aug 6, 2017

In smaller sizes, bicycle techs call them "cone wrenches" and use them to adjust bearing cones. I have one I made from a 1" combination wrench that I use for PS pump outlets on Fords and Chevys, never any room for a standard wrench.

Billy Shafer · Aug 6, 2017

That is what I use mine for. The old Onans have a tight spot to get into.

Slim wrenches

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