Super-Thin Open End Wrench Set, SAE

The Capri Tools Super-Thin Open End Wrench Master Set (CP11850-14MST) is a high-quality collection designed for mechanics and DIYers who often work in tight or hard-to-reach spaces where standard wrenches can’t fit. Made from strong yet slim-profile steel, these wrenches provide excellent durability without bulk, making them ideal for jobs like working on hydraulic fittings, bicycles, or automotive repairs. The polished finish gives them a professional look while resisting corrosion, and the wide range of sizes in the set ensures you’ll always have the right tool on hand. For anyone looking to add precision and versatility to their toolkit, this set is a practical investment that pays off the first time you run into a cramped workspace.

Awesome wrenches. It has helped getting access to those tight areas that needed securing. This is a definite recommendation for a mechanics tool box.

Very nice set of wrenches

When I first saw them I thought I had really screwed up. They are kind of pricey, I thought. Well worth the money. They come shipped in a good tool storage container. I use these wrenches on air and steam control lines where there is just not enough space to get regular open end wrenches on. These are great for those super thin areas. I’m getting used to the odd looking open ends and I have spotted a couple of these wrench kits on some of of the other jobber carts where I work. I have made thin wrenches before by using an end mill and machining off the facing of the wrenches but I could never get them as thin as these wrenches. These wrenches will hold up to use where the ones I made would usually snap at the jaw. I even heat treated my home built ones trying to get better strength. I have had these wrenches a short time but they are being used without issues. If you need to get into narrow spaces these are what will work.

I bought these just for doing brake jobs. Virtually every brake caliper out there requires a skinny wrench. These work great.

I've been looking for a thin wrench set for working on the rear brake calipers, and, after reading and watching a lot of positive reviews here and elsewhere, I've decided to purchase this set since I've had purchased an impact socket set from Capri. The set arrived quickly and was nicely packed. Upon close visually inspection, the 14-15 mm wrench looked much thinner than the 12-13 mm. The 10-11 mm wrench looked slightly thinner than the 8-9 mm wrench; and the beams on both weren't straight (see photo), they were deformed exactly where the logo was stamped which, I surmised, have deformed the wrenches due to tremendous pressure stamping down on them. I noticed that the beams were slightly bulged-out along both edges on all wrenches where the logo was stamped. I went-on to measure the thickness and width of the open ends, and the result is below: - Thickness: as evident from the measurements, the 14-15 mm and 10-11 mm are way out of spec. - 18-19 mm: 4.48 (spec: 4.6 mm) -0.12 / -2.6% Thinner - 16-17 mm: 4.54 (spec: 4.6 mm) -0.06 / -1.3% Thinner - 14-15 mm: 3.40 (spec: 3.6 mm) -0.20 / -5.6% Thinner - 12-13 mm: 3.67 (spec: 3.6 mm) +0.07 / +1.9% THICKER - 10-11 mm: 2.28 (spec: 2.6 mm) -0.32 / -12.3% Thinner - 8-9 mm: 2.52 (spec: 2.6 mm) -0.08 / -3.0% Thinner - 6-7 mm: 2.11 (spec: 2.2 mm) -0.09 / -0.40% Thinner - Width: from +0.09 mm to +0.20 mm. - Flatness: 8-9 mm and 10-11 mm wrenches are not straight. - Finish: the chrome is shinny but is very soft. Some of them got all scratched-up after just one brake job, more than I am accustomed to seeing on other chromed tools that I have. On some, the chrome is sort of uneven, orange scales, since the prepping of them wasn't adequate. About the finish, I can still see and feel burs on the open ends of some, and shaft edges on the beams that can dig into your hands w/o using gloves. In summary, for my light-duty needs, these wrenches would do the job adequately since they would mostly hold the fasteners from spinning for removal; however, for some with tolerance reaching 0.20 mm, they may not work well on the stubborn fasteners. And, lastly, I would recommend this set for light-duties jobs. As for the deformed and out-of-spec wrenches, I am going to contact Capri for replacement; and, if that is a "no go", then I will return the set and look elsewhere. Recommendations for Capri MFG: 1) To prevent deforming the wrench beams, Capri MFG may wish to rearrange the MFG process to stamp the logo first, then followed by the straightening process. 2) I wish Capri would have smooth-out the burs and edges, so they would go easy on the hands. 3) Prepping the wrenches should be thoroughly before chroming them to prevent uneven finish. =========== 4/27/23 Update: I have reached-out to Capri Customer Service (via an email) for replacing the defected wrenches, and after submitting the PO and some pic's, I have received them in about two days. It was a pleasant experience, which gives me confident to purchase from Capri in the future. And, I am upgrading the rating to 4 stars. =========== 5/31/23 Update: Wrenches are still working superbly w/o slipping. I am entertaining the idea of purchasing the SAE set as well.

These are great to have . Sometimes you need a thin wrench.

Just what I needed to get new sway bar links on a 2011 f150! Seem like great quality. Love the “no skips” ended up needing an 18mm glad they had it in the set. Surprisingly feels sturdy I’m sure I’ll need these in the future. Would buy again.

I needed some skinny spanners and couldn't find any in the local tool shops. After reading reviews of the Capri super thin wrenches thought I might as well order them. I ordered both metric and SAE because it is nice to have quality tools and you never know what you will need in the future. I am glad I did as the set turned up within two days, the other reviews are not wrong about the quality, these are as nice as any spanners I own. I needed an 8mm spanner less than 2.9mm wide to get to an adjuster on the rear suspension of my car. The spanner fitted perfectly so I now have my car back together and am happy. My only wish is that the larger sizes were also under 3mm wide just in case I need something skinny in the future that is bigger than 16mm, however at 4.6mm wide they are still a lot skinnier than my other spanners at around 8mm for any size larger than 16mm. I am tempted to order the 20 by 22, 22 by 23 and 22 by 24 because they are good quality and could be useful.

Son de muy buena calidad por el precio las agarré de oferta en $937 siempre hacen falta llaves delgadas si las recomiendo y por el cromado son muuuy fáciles de limpiar, eso si se rayan tambien muy fácil

Awesome quality and coverage of sizes for getting into hard to reach places without needing to shave down my existing spanners.

I bought this Capri set of thin wrenches for doing stabilizer links and holding slide pins on many makes and models brake calipers as in both cases often standard combination wrenches are too thick to allow me to hold the pin or stud in place while I tighten up the component with a socket or other wrench. So far these wrenches have held up perfectly with no signs of damage. Plus compared to some of the other options for thin wrenches on the market these are finished very well and come with a decent wrench holder than fits in a standard shallow toolbox drawer. If one of these ever fails I'll update my review, but if you're in need of a thin wrench set without emptying out your wallet to the professional tool brands, these Capri thin wrenches are definitely worth ordering.

Even though the 10mm spanner had a manufacturing fault as shown, Capri tools very quickly sent me a new one straight to my door. Considering I'm in Australia, it took like 3 maybe 4 days to get the new one to me. No fuss at all. That's great service and tools are excellent for the price. I have several Capri tools and must say I'm impressed so far