24 mm six point wrench needed…

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Jan 20, 2025
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Need a 24MM, six point wrench, for the oil drain plug on my smart.

Box end preferred…

Any suggestions?
 
Very limited space, and plug gets welded in there.

Using a 6 foot cheater bar, still tough to get started…
 
Any chance there is room for a low profile (stubby) impact socket with breaker bar?

I also agree with spasm3 - today's high quality 12 points have the contact point on the flat, not the corner.
1763520740494.webp
 
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I was trying to grasp what's so unique about this situation. From the one video I watched, turns out nothing at all.


At ~2:45 he removes the plug. He winds up slipping a jack handle (foreground) over the breaker bar already seen in place. The entire suspension compresses repeatedly as he pulls down on what would be a comically long cheater in any other application FOR AN OIL DRAIN PLUG.
Screenshot_20251119_064851_Chrome.webp


Apparently Smart uses new technology oil (API ZZ) with molecules .001 the size of standard oil, meaning they can escape past the drain plug unless it's torqued to 573.3 ft lbs plus 200 degrees (be sure to buy a digi 3/4" TW) <---- that's called humor, albeit poor

At ~5:45 he reinstalls with a basic 1/2" ratchet only and says the spec is 25 ft lbs.

OP, many pawn shops have tubs of loose sockets and wrenches. You might go digging for a couple options is 15/16 (.9375") and 24mm (.945"). Either should work fine as Chris said.
 
Solid recommendations above ^^.
OP, in 24mm you do not need a 6pt box end. A 12pt has plenty of grip at that size to rip the head off a grade 8 or class 10.9 bolt.

Wright wrenches are the pride of my box, but their box ends aren't as special as their wrightgrip open ends. I'd not say they're notably better than many other box ends.


If you are prioritizing the box end, I'd point you towards a Williams with a bit of offset: https://www.amazon.com/dp/B001DNRQ6Y/ref=dp_iou_view_item?ie=UTF8&th=1

The box ends of the Williams are just a bit nicer than the box ends of the Wrights. (although as an overall combo wrench, I still rate Wright #1 running away). The Williams box ends have very little chamfer, to they fit better and stay seated nicely. They are superbly confidence inspiring. They are Taiwanese, but the Taiwanese are masters of hand tool mfg.

Now if you don't mind paying a premium for the best fitting, most secure gripping box wrench on earth, then you can always indulge in one of these works of art:
https://neprostools.com/products/A000229

Yes, it's $90 for a single wrench. Yes, it's also the best wrench on earth for any plug removal task and a work of art to boot.
 
I was trying to grasp what's so unique about this situation. From the one video I watched, turns out nothing at all.


At ~2:45 he removes the plug. He winds up slipping a jack handle (foreground) over the breaker bar already seen in place. The entire suspension compresses repeatedly as he pulls down on what would be a comically long cheater in any other application FOR AN OIL DRAIN PLUG. View attachment 311010

Apparently Smart uses new technology oil (API ZZ) with molecules .001 the size of standard oil, meaning they can escape past the drain plug unless it's torqued to 573.3 ft lbs plus 200 degrees (be sure to buy a digi 3/4" TW) <---- that's called humor, albeit poor

At ~5:45 he reinstalls with a basic 1/2" ratchet only and says the spec is 25 ft lbs.

OP, many pawn shops have tubs of loose sockets and wrenches. You might go digging for a couple options is 15/16 (.9375") and 24mm (.945"). Either should work fine as Chris said.

I love the humor, personally.

But anyone using a socket on this should be chastised. A socket it applying the torque at a height above the actual hex. This induces bending and will cause the socket to come off the hex and bugger it quite badly.


Max torque efforts should be only on box end wrenches wherever possible. And when you can make a box end fit (wrench extenders are awesome), you should be using a very shallow socket. The Astro Nano sockets are superb for that.
 
Too bad he used those channel locks upside down, would have been a good video.
I was wondering what the bug screen was for on the oil drain plug, then I saw some sort of return line coming into that area, Strange design. I wonder what it is supposed to stop? Chunks of steel I guess.
 
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