Buy Now, Pay Later
As low as
$8.91
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Sunday, Jun 28
Size: 17mm-19mm
Style: Wrench
Features
- Double Box Flex
- Extra long, flexible and reversible
- Patented 90 tooth design
- Limited lifetime warranty
- Replacement Parts Available for Ratchet Head and separate Pin
Color: Silver
Brand: MOUNTAIN
Material: Metal
Item Length: 19 Millimeters
Item Package Quantity: 1
Head Style: Box End
Operation Mode: Pneumatic
End Style: Ratcheting Box
Is Non Sparking: No
Is Racheting: Yes
Measurement Standard: Metric
Point Count: 12
Wrench Length Style: Flex-Head
Material Type: Metal
Finish Types: Polished
Color: Silver
Item Length: 19 Millimeters
Package Quantity: 1
Brand Name: MOUNTAIN
Model Number: EX-PFFGBXZ17191
Manufacturer: Mountain
UPC: 012304689096 702597989453 069060345858
Global Trade Identification Number: 53
Item Type Name: Ratcheting Double Box Flex Wrench
Included Components: adjustable wrench, handtools, wrenches
Unit Count: 1.0 Count
Manufacturer Warranty Description: Lifetime warranty does not cover abuse
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jun 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 8mm-18mm
Style: Wrench
Worth the money. Well engineered.
Reviewed in the United States on January 12, 2026 by RGS1965
Size: 8mm-18mm
Style: Wrench
Amazing Wrenches. Highly recommend buying these. I have used them now for a couple months and put them through hard daily use. When you need them they come in handy. I was worried about buying them with there being some reviews saying that the warranty was difficult but I broke one and it was super easy talking to the seller and within 2 days I had a new one shipped to my door.
...
show more
Reviewed in the United States on December 18, 2025 by Case
Size: 8mm-18mm
Style: Wrench
This is a good product and very handy for those hard to reach area on my car. I have used this several times and i honestly can't complain about how useful they are when i needed something long and flat for those hard to reach area underneath the hood or around the engine bay area in my Toyota Solara. I just recently replaced a Rack and Pinon on my 2006 Toyota Solara SE Sport 2.4L and this ratchet (especially the 17/19mm) saved me a lot of time when it came to tightening the two big bolts holding the rack and pinion in place. I think you know what i mean if you have replaced a rack and pinion before on a Toyota Solara. This area is to tight and you need something long and flat to get to the bolt otherwise you will need to lower the frame and the stabilizer bar to get to these bolts. As for the customer service experience i had, i will rate the seller 5 stars! Excellent customer service! I was replacing my driver side knuckle/spindle the other day when the little locking pin on the side of the 17mm ratchet just fell off. I tried to put the pin back in place but i wasn't successful and the ratchet won't lock and just kept rotating. I knew it was too late for me to return the item because i had already missed the return window set by Amazon for this item. However, i decided to send the seller an email and explain to them what had happened. I was delighted a few days later when i received a FedEx package containing a brand new 17/19mm Spline Reversible Ratcheting Wrench. I am very happy that they did because this is the one i use the most. Thank you for taking care of your customers. It means a lot to me!
...
show more
Reviewed in the United States on March 5, 2021 by Manda
Size: 8mm-18mm
Style: Wrench
Love my mountain wrenches must have set.
Reviewed in the United States on March 16, 2026 by Todd Sundstrom
Size: 8mm-18mm
Style: Wrench
As an auto tech I have had these for over a year but only used them a few times when I really need to get deep into a dash panel, around a steering shaft, or down in the middle of an engine compartment, or get to an exhaust nut- ie, the 5.3 Chevy exhaust manifold nut that I have no other tool for because the frame and wire harness is in the way. If you have replaced the cylinder heads on these engines you know the challenge. All the engines I have worked on so far have been fairly new so the nut wasn't completely rusted out but still I was very impressed that it tool off the nut without a problem. As Bob mentioned in another review- the wrenches will stick to the nut or bolt when they are new so they can be a bit difficult to get off the fastener after loosening. I use these wrenches very rarely but for the cost they are completely worth it and a time and knuckle saver for those tight spots where nothing else works. I think they will last a lifetime for me. I imagine they would wear out if used every day but most gear style and flex head wrenches will.
...
show more
Reviewed in the United States on January 13, 2023 by Paul
Size: 8mm-18mm
Style: Wrench
These are my favorite wrenches. I hate the price but still bought a second set.
Reviewed in the United States on March 5, 2026 by Mark B
Size: 8mm-18mm
Style: Wrench
Great leverage, great durability, great for hard spaces, I use these primarily for alignments but I’ve needed these for engine bays plenty of times now. Highly recommend
Reviewed in the United States on March 9, 2026 by Ricardo
Size: 8mm-18mm
Style: Wrench
While these are solid wrenches that could definitely withstand a long life in the shop, beware of possible quality control issues in your individual purchase. I'm extremely happy with the robustness and overall machining,(tactile and functional, nice polished finish) Despite all this, the 8mm's black toothed insert was loose in the package. The retaining ring that should've held the mechanism firmly together was nowhere to be found within the sealed plastic enclosure or in the cardboard shipping box, so natural assumption is it was never installed in the factory, and yet somehow made it through their quality control. It's hard to imagine it could be lost anywhere else given the difficulty it would take to remove one that was properly assembled. That said, I imagine the seller would probably handle that, if it happens to you given people's positive experiences. In my personal case, I'm impatient and handy with plenty of junk lying around, so I robbed the clip out of a broken cheapo ratcheting wrench I had lying around, and fixed the issue myself. I simply couldn't wait the time it would entail to go through replacing the incomplete unit. Seriously though, these things mean the business. While I have only just gotten them, and have yet to put them through their paces, they radiate the same sense of quality as the tool truck equivalents I used every day in life back when I was working full time at the shop. If you can catch them on sale, I wouldn't think twice to pull the trigger on a set. I do however hope you have better luck than I did with respect to quality control. I imagine I was just rather unfortunate mishap, and that it doesn't speak to the character of the company who produces them.
...
show more
Reviewed in the United States on December 5, 2022 by Chance