Stillgottimefor1
Well-known member
The numbers on it are also puzzling to me…anybody recognize this? Will clean it better when I get back home, out of town now.
Is this stamped’I.H.’ In the circle or what?
- Thread starter Stillgottimefor1
- Start date
Username already in use
Well-known member
Looks like MH to me. Which would be Mckaig Hatch.
if it’s an IH, could be International Harvester.
if it’s an IH, could be International Harvester.
OP
Stillgottimefor1
Well-known member
I thought so but their emblem doesn’t look like that, at least no pictures I’ve seen…
four.cycle
Well-known member
OP
Stillgottimefor1
Well-known member
You nailed it, thanks!
wrenchguy
Well-known member
It's not IH. Where is the straight on photo?
Duke74
Well-known member
Yeah, the middle picture is a dead ringer for the logo on the wrench.
Private Lugnutz
Well-known member
Agreed!
I have a McKaig-Hatch DOE engineers' wrench that looks like it came from the same era. It also has a number ("1702") on the flip side shank that I've always assumed to be a model number.
Here's the top side.
I think the other number ("1046"), turned sideways on the shank near the head, is an AISI number for the carbon steel composition, which I have never seen on a wrench other than Herbrand, which is interesting and probably the sole reason I picked it up at the flea a few years ago.
But to get back to your wrench. If my "1702" is the model number, why does your wrench have two of them ("1551" and "6152")? No apparent correlation to anything or each other, and especially weirdly and seemingly unscrutable when it's a combo wrench with the same opening size, and that size is the same as one of my open ends.
Private Lugnutz
Well-known member
It is! A strange one. And, as long as you went there, believe it or not, AISI 1551 is a strange medium carbon steel!
So half the wrench is medium carbon and the other half is a low-chro CV alloy? WTAF?
I have definitely not seen anything like that before.
So half the wrench is medium carbon and the other half is a low-chro CV alloy? WTAF?
I have definitely not seen anything like that before.
OP
Stillgottimefor1
Well-known member
Reading about McKaig-Hatch in A.A. Suggested that they used alloy numbers on the tools, but different ones on the SAME tool doesn’t make sense to me either…
Private Lugnutz
Well-known member
Interesting. I criticize AA for getting plenty wrong, so credit to them for observing that. I'm a little surprised they didn't at least make a reference, with caveat, about the practice typically being exclusive to Herbrand and wartime, because it could maybe help date them. Heck, I would go out on a limb and say it maybe even raises the specter of the possibility that Herbrand is the OEM. They did make paneled wrenches.
^ That was in reply to Stillgottimefor1 (who needs a nickname).
^ That was in reply to Stillgottimefor1 (who needs a nickname).
Private Lugnutz
Well-known member
Agreed. Only a few sequentially away and eliminates the dual-compositional nonsense.
four.cycle
Well-known member
3/8 1551
7/16 1552
1/2 1553
9/16 1554
19/32
5/8 1555
11/16 1556
3/4 1557
13/16 1558
7/8 1559
which makes a little bit more sense, as long as 19/32" isn't part of the equation.
7/16 1552
1/2 1553
9/16 1554
19/32
5/8 1555
11/16 1556
3/4 1557
13/16 1558
7/8 1559
which makes a little bit more sense, as long as 19/32" isn't part of the equation.
Private Lugnutz
Well-known member
OP
Stillgottimefor1
Well-known member
OP
Stillgottimefor1
Well-known member
Call me Still-as in ‘still around’, until I’m not…