Four Sided Open-End Wrench?

[Tul]

I have a 27mm flare nut on my car's EGR valve that connects it to the EGR pipe.

EGR issues are becoming a regular hassle on my Toyota. I have a Craftsman 27mm open-end wrench that works. However, I'd prefer something with four sides to reduce the risk of rounding off the nut (I use antiseize on the threads). Also, an open-end ratcheting wrench would be even better.

I enclosed photos of what I'm talking about, first being my current Craftsman open-end wrench, the second being what I'm looking for.

Can you recommend brands and sources?

 

[M6erfan]

27mm Ratcheting Flare Nut wrench...
https://www.ultimategarage.com/shop/part.php?products_id=4537

24/27mm flare nut wrench...
https://www.pegasusautoracing.com/productdetails.asp?RecId=13765&utm_source=google&utm_medium=cpc&utm_campaign=BT-000940024&gclid=CjwKCAjwtO7qBRBQEiwAl5WC217fPPF0SoBZ27Y7a5HALwNbHuPjRzv2j8kWTlUozUgRBhY29twMgxoCZdoQAvD_BwE

 

[Steiger9]

The few open end ratcheting wrenches I have used seem to have less contact area with the fastener, not more.

 

[Tul]

Thanks, both of you.

$135 is a bit pricey for me.

Maybe a non-ratcheting, four-sided wrench is the way to go. I remember seeing Husky brand at Home Depot about a year ago, but not in 27mm

 

[gatlibs]

https://www.tekton.com/angle-head-open-end-wrenches?quantity=1&metric-size=27-mm&unit=metric
This may give you more options in angles.

 

[Tul]

Angles aren't my issue; two sides is.

How about this Crescent one, though the added sides seem small and I need a wider mouth than 15/16" (ie 1-1/8") to accommodate the 27mm nut:

https://www.ebay.com/itm/Crescent-6...498005&hash=item1ca5520364:g:PDMAAOSw7p1asY7X

Also, what's the durability of Crescent adjustble wrenches? Do they have a lifetime warranty?

 

[gatlibs]

I thought that four sides meant that you wanted to be able to position an open wrench in four different ways. I don't think that the two sides of contact in an open ended wrench matter unless it is flare nut styled. Else, Wright Grip wrenches would be styled this way.

 

[619DioFan]

27mm 12 point flare nut crows foot ( if the slot is wide enough ) about 40.00 on amazon. sorry no link.

myself I would get a 12 dollar 27mm combo wrench from HD and cut a slot in the box end. plus you could bend it for better clearance.

 

[sberry]

Yes, cutting the slot works quite well. Can see an old WT Grant wrench laying on top this was done to. They were brutally tuff.

 

[65k10]

Gedore says these are more for damaged fasteners and not cheap, but maybe it would be something to consider.
https://www.zoro.com/gedore-locking-wrench-27mm-137-10-27/i/G9058546/?q=Gedore 137 10-27

 

[4xdog]

That second image in the op is of those awful "quick action" open end wrenches, not a flare wrench. A worthless mod, IMO.

I'd simply make one by cutting a box end as first noted by 619DioFan above.

 

[Wamsutta]

Why wouldn't a 27mm flare nut wrench work?

 

[kctyphoon]

Would an O2 socket work?

 

[gatlibs]

An oil pressure switch socket is 1&1/16" (2.988 mm).
Lisle makes 13200,13250,13900 which might be adaptable to your situation. I don't know that O2 sockets get that big in size. What model and year of a Toyota has a flare nut accessed E.G.R. Valve? I have been searching Toyota egr 27 mm flare nut with no luck.