Works great. Just don’t go over what it says it can handle torque wise.
Chain-driven · Zero swing arc · 4 adapters
The Offset Extension Wrench
The bolt is right there, and nothing fits. Slide this thin bar in, put the socket on the bolt and turn from the open end.
- Reaches bolts a ratchet cannot get to
- No swing room needed at the bolt
- 4 adapters included: 1/4, 3/8 and 1/2 in
- Keeps your knuckles out of the tight spot
$59.99
Free shipping
Buy 2, get 1 free
4.4 441 buyer ratings
Estimated delivery 6–10 business days
- Easy returns
- Secure checkout
- Real people reply
Why it is worth it
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Reaches the buried bolt
A chain inside the bar carries the turn from your ratchet to the socket at the far end, past hoses, pipes and brackets.
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Thin enough to slide in
The flat bar slips into gaps where a socket extension and ratchet head cannot go.
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No swing room needed
The bolt end does not swing at all; you turn at the open end where there is space.
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Adapters included
Four adapters in the box so it works with the ratchets and sockets you already own.
How it works
Turn it where there is room.
- 1
Slide it in
Put your socket on the thin end and slip the flat bar past the hoses and brackets.
- 2
Turn the open end
Put your ratchet on the other end, out where it has room to swing.
- 3
The chain turns the bolt
The chain inside carries each turn down the bar to the socket on the buried bolt.
Why a ratchet and extension cannot do this.
| Feature | Offset wrench | Ratchet + extension |
|---|---|---|
| Goes around an obstacle | ✓ | ✕ |
| Works with no swing room at the bolt | ✓ | ✕ |
| Fits a thin gap | ✓ | ✕ |
| Uses the sockets you own | ✓ | ✓ |
Garage, driveway, shop
Skip the job that means taking half the engine apart.
Starters, spark plugs, exhaust and manifold bolts, the back bolt on an alternator: the shop charges hours because they remove parts just to get a wrench in. This bar goes around them instead.
The details
The full specs.
- Drive
- Chain-driven gear inside the bar
- Swing arc
- Zero at the bolt end
- Adapters
- 4 included (1/4, 3/8 and 1/2 in drive)
- Use with
- Hand ratchets and sockets you already own
- Boxed
- About 17.7 in long (450 mm), 1.7 lb (750 g)
For reaching bolts, not for breaking loose rusted ones: crack a stuck bolt loose first, then spin it out with the wrench.
In the box
- The Offset Extension Wrench
- 4 drive adapters
Care
- Wipe off oil and grit after use.
- Use hand tools or low impact settings; do not force a seized bolt with a breaker bar through it.
- Store it dry.
Questions
Email support@ottergoods.com. A real person replies, usually within one business day.
Shipping & returns
Free tracked shipping. Easy returns.
You get a tracking link by email as soon as it is on its way.
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You order
Secure checkout by Shopify.
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Ships in 1–3 business days
Packed and handed to the carrier.
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Arrives in 5–7 business days
Tracked USPS delivery to your door.
Not right? Return it unused. If it arrives damaged or not as described, we replace or refund it, including shipping. Returns policy
Good questions
The questions we get most.
How does it work?
Put the right socket on the end near the bolt (use an adapter if needed) and your ratchet on the other end. Turning the ratchet turns the chain inside the bar, which turns the socket.
Will it fit my sockets and ratchet?
Yes: the four adapters cover 1/4, 3/8 and 1/2 in drive, so it works with the sockets and ratchets you already have.
Can I use it with an impact?
Use a low setting and let it spin bolts in and out. For a seized bolt, break it loose first with a breaker bar where you can reach, then use the wrench.
How long does delivery take?
It ships in 1–3 business days and arrives 5–7 business days after that, with tracking.
Can I return it?
Yes, if it is unused. Damaged or not as described? We replace or refund it at no cost to you.
Reviews
What buyers say.
This is more handy than I thought it would be when I got it. At the price, this is going to be my guy gift this Christmas. Every man in the family will be getting one.
This tool saved me many hours of extra work and money. This offset wrench reached two very hard to reach nuts on my Yanmar3YM20 diesel engine in my sailboat that would have required me to remove my engine to access without. It is now a permanent tool in my toolbox. It more than paid for itself.
This exactly what I needed to reach the rear spark plugs on my engine. Very easy to use and saved me a lot of time.
Life saver when you can’t reach in tight spaces
Helped with removing and installing dodge 3500 water pump due to tight spaces!
As a machine technician, this works wonders.
This extension for socket wrenches is a great idea. It wouldn't be my first choice for working with a nut, but it does give you possibilities where there is no easy angle or reach for one. They include adapters for 1/4", 3/8", and 1/2" wrenches and sockets. The 3/8" wrench will fit directly into the extension wrench. Sockets will require one of the adapters. The force transferred through the extension is equal to what happens at the other side. In other words, one turn on the wrench creates the same one turn on the socket at the other end.
Works as advertised
If you have that nut or bolt you can’t seem to get to because the space is so tight, this might be what you need.
Tool works as described.
This popped up available to review just in time as I was looking at ordering this exact model to reach a couple of bolts under the hood of my 2nd Gen Cummins Pickup. Most bolts are easily accessible, but there's a few on the engine block that were designed by engineers who knew they would never have to turn a wrench on these things. Lol. These offset extension wrenches solve so many issues. And it's utility extends (no pun intended) beyond automotive use. If you are working on furniture with a tricky bolt reach, or a bicycle wheel you need to mount with a sprocket engaged, this is perfect. I'm hoping I can finally get this bracket now mounted without issue.If you're on the fence, just watch endless videos on Youtube of technicians using versions of these wrenches to solve all kinds of issues and install/uninstall belts, pulleys, alternators. etc.
This offset extension is a really handy little tool when you need to get into a tight spot where a normal straight extension just will not line up. The offset design lets you drive a fastener from an angle, which can make a big difference around brackets, engine bays, furniture, or anywhere clearance is limited.It feels solid and well made, and the compact size makes it easy to keep in a tool bag or socket set without taking up much room. I also like that it gives you another option before reaching for a universal joint, which can sometimes feel loose or awkward depending on the job.Overall this is one of those small specialty tools that you may not use every day, but when you run into the right situation it can save a lot of frustration.
I haven't had the chance to use it yet, but I will at some point and I think it will really come in handy.
This 3/8" offset extension wrench is a very useful addition to my toolbox. The offset design makes it much easier to reach bolts and fasteners in tight or awkward spaces where a regular ratchet and extension just won’t fit. The build feels solid, and the tool is easy to use with my existing sockets.I especially like the extra reach and the ability to work in areas with limited clearance. It has already saved me time and frustration on automotive repairs. The impact-ready design is also a nice feature, although I would still be cautious about using it for extremely high-torque applications.Sometimes a simple one hour job goes to three hours because of that one bolt you can barely touch, but can't turn...This may solve that problem. You'll be glad you have it even if you rarely use it.
I brought one of these from another company for my son's birthday but it didn't come with the adapters, even though the picture shows the adapters, which makes it pretty useless but this one came with the adapters so my son is very happy with it
I got this offset extension wrench that is the 3/8 inch impact ready socket wrench extender with the 1/4, 3/8, and 1/2 square drive adapters for tight and small places. This thing is heavy, but the operation is smooth. It comes with bits for sockets so you can switch drives without hunting for separate adapters. The weight might be an issue if dropped. I can see this thing explode open into a load of parts if it hits the concrete just right.I will use it for the hard to reach bolts on the truck and in the man cave where a regular ratchet will not fit. The zero degree swing lets it turn fasteners in spots with almost no room to move the handle. Fine tool once you get used to the bulk. The chain drive inside keeps the ratio even so it does not bind, and the adapters cover most of the sockets I already have. Good enough that it solves the reach problem even if I am careful not to drop it and turn it into a pile of chain and housing pieces.
Can't say yet. Purchased on views in U-Tube. Haven't needed it Yet. From weight it should not be made from old fashion pot metal.
Works as it should. Hasn’t broken yet.
4 star for now maybe I'll change my review after it proves itself.
Woudl probably work good on a lot of different bolts but I was using it on a very tight bolt up in the engine bay and it snapped the internal mechanism rendering it dead in the water. So be conscious of what you are going to use it for. I would consider it useful for light duty in hard to reach places. Not to be used to break loose stubborn bolts.
I've been looking for an offset extension bar to help reach into tight spaces where a regular ratchet or wrench just won't fit, and this one does the job. It's approximately 15 inches long, which gives you some decent reach and makes it easier to get into awkward areas without having to remove a bunch of surrounding parts just to access a bolt.The extension bar came with four different socket adapters, which is a nice bonus and gives you some flexibility depending on the job you're working on. The construction is all metal, and it uses an internal chain mechanism to transfer the turning force to the socket. I was able to use it successfully, and it definitely comes in handy when working in confined spaces.My biggest concern, though, is the overall build quality and how well this tool will hold up over time. Mine arrived with several dents and scratches, which wasn't the best first impression. I also noticed that the internal chain seemed a little looser than I would have liked. While it worked fine for my needs, those things make me question how reliable it would be with frequent use or when dealing with stubborn, tight fasteners.Overall, I think this is a useful tool to have in your toolbox, especially if you occasionally run into situations where a standard ratchet or wrench simply won't fit. It worked as intended and can save you some frustration in those hard-to-reach areas. However, based on the condition it arrived in and my concerns about the internal mechanism, I'm not sure I'd recommend it for a professional mechanic who plans to use it every day. For occasional DIY projects and general garage work, it's worth considering, but I have some reservations about its long-term durability.
Concept is great, but:A. It’s very large and bulkyB. The build quality is cheap…or it has a cheap feel to it. The steel halves aren’t very thick or sturdy. The orange or blue part isn’t a quality grip…it’s a plastic-like sticker wrap…yuck.But…still a good tool
Received as promised, works but light duty
Looks light duty. Don't know if it will stand up or not?
Works as intended and took a lot of torque with a 1/2 2 foot ratchet. Still a little to fat with the attachments on it in some jobs. The chain drive is a little noisy but it is smooth and a good weight.. recommend for light truck and cars...
Very well designed and seems very well made. I the adapters that came with it. The only reason I gave it 3 stars is because it doesn’t have any breaking power with an impact. If the bolt or nut is already loose it works great and saves time. I just think there probably a better designed one out there that has a lot more breaking power.
OK for loose bolts
To thick for what I needed it for
Isn't asking user friendly as I expected
Not impressed with this item. I wouldn't suggest anyone to purchase this item.
It works.But be careful to use gloves, the seams that aren’t covered by the plastic sleeve are so sharp that you can cut yourself.It was cheap but I’d not buy it again.
Cannot break something loose that is very tight, too much flex or slack on the chain. Does not work with an impact or cordless ratchet if you have to break a bolt loose first.
Broke this tool within 3 minutes using a standard 3/8 ratchet not an extension bar or anything like that it's a regular 3/8 ratchet broke the chain inside of it this tool is junkIt did nothing but make my job harder and took more time
this thing sucks.
Very cheaply made haven’t even used it cause it seems like something you’d buy from the dollar store
I received my delivery, but missing the four attachments included.
Didn’t come with any extensions. So pretty much useless
Chain broke inside 4th use... not happy at all
Product did not come with any adapters
No good!!! Waste of money.. had to send it back.
