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🔩 Master your brake lines with pro-level precision and speed!
The Capri Tools 3/16 in. Double Flaring Tool (CP21110-316) is a compact, all-in-one flaring solution engineered to create perfect 45-degree SAE double flares on brake and fuel lines. Compatible with non-stainless steel, nickel, and copper tubing, it cuts flaring time by 50% and works efficiently in tight spaces or on-vehicle. Featuring a detachable die for bench vise use and requiring only a 10 mm and 17 mm wrench, this tool combines portability, versatility, and durability backed by a lifetime warranty.













| ASIN | B0859QMSNX |
| Best Sellers Rank | #19,195 in Automotive ( See Top 100 in Automotive ) #11 in Brake Repair Brake Flaring Tools |
| Brand | Capri Tools |
| Brand Name | Capri Tools |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 1,305 Reviews |
| Folded Size | 1.55 inches |
| Included Components | Double Flaring Tool |
| Item Dimensions | 8.9 x 5 x 1.55 inches |
| Item Type Name | Flaring Tool |
| Item Weight | 12.8 ounces |
| Item dimensions L x W x H | 8.9 x 5 x 1.55 inches |
| Manufacturer | Capri Tools |
| Manufacturer Part Number | CP21110-316 |
| Manufacturer Warranty Description | Lifetime Warranty |
| Material | Alloy Steel , Copper |
| Material Type | Alloy Steel, Copper |
| Model Number | CP21110-316 |
| Number of Pieces | 1 |
| UPC | 886352211109 |
| Unit Count | 1 Count |
S**.
Great tool
This is the best flair tool I've ever used. It makes a perfect flair first try every time. Works better than the hydraulic tools costing a few hundred bucks.
J**N
Nothing to think about. Buy the tool if you need to double flare 3/16th lines.
This thing is Amazing. I dont see how anyone who can follow simple instructions cant flare a brake line. Believe me if you can't make this tool work you should not be working on something as important as brakes. It is so easy. Cut and deburr tubing slide on your fitting the thead side down. Then take the tool thread the given alinement stop bolt in the end and slide the tubing in firm against. Then tighten the 2 10m bolts to secure it to the line. Then take outo the alinement tool then take the die and thread it in the side marked operation 1 first and tighten until it bottoms out. Dont forget to greese it first. The unbolt the die and greese the other end snug it down. Then back it out and back off your 10 mm bolts and it's good to go with a perfect flare. I was doing a complete system so I was doing several flares. I used my 20 volt brushless 1/4 in dewalt impact driver to tighten the 10 mm bolts and to drive the 3/4 8n bolt. Not sure if that's recommended but it sure made things go fast. You just got to be smart and not get crazy and I had no problems. Out of a entire under the floor brake job I only had to redo 2 flares. Once because the tube slipped when tighten it down and wasn't in the tool enough. I mean it was a flare but not very pretty. Then the other was the typical thing we all do. I forgot to put my threaded fitting on. The line first and had to cut off a perfect flare. My only down side to the tool is the handle. I know they wanted it to be able to remove it so it could be used in a vice. The down side is it just screws in hand tight and it always backs off and the tool wants to spin in hand if its loose. Other than that this thing out the box will make flares like some of 400 dollar sets. For the price and quality job it does I am okay with it. Way better than the old kind that you clamp the tube between 2 bars and then slide the flaring tool on the arms. Then you had to use a little button thing and press again for a double and they never make the double ones well. They do Ok at a single flare but who is going to do brakes with a single flare? Also I would like to state that I ran a copper nickle line. I can not speak to how well it would do on steel lines. But I doubt it would have to much trouble. Also I seen someone say he had to modify the alignment bolt so it screwed in 1mm closer or something. I never had that issue. Maybe he had one that they missed on quality control who knows. But overall don't think twice if you need to do brake lines it's amazing. I got to run a 5/16 tube for fuel I was going to use the old style flare tool since it is very little pressure any way with a carb set up. But I might buy one like this in the bigger size. We will see. I hope this helps someone so they can decide to make a solid purchase of a great tool. You can look at my reviews I have done several and they are not all good and I am not paid. I call them like I see them I just think this is the most bang for the buck for this type of tool.
P**.
Works very well
Nice little tool that creates easily very nice flares on brake lines in limited space. Even if you have to use it once its worth its price considering the alternative is to remove a whole section of brake line that can take many hours.
E**R
Best and simplest
100% recommend this tool! did my first brake line job although i have done basically everything else on a car this is so easy a beginner could figure it out. Got a perfect flare on the 1st try for every line i did
C**E
Good Idea, not so confident about the materials used
I'm nearly 72 1/2 Years of Age, & just have bent My own brake lines for the 1st time 😉. My take on this tool is it is a good idea, & never having flared a brake line in My Life used it & had a useable flare on the 4th go round, so it is easy & effective. My concern with the tool is it is made of some type of metal alloy instead of steel. The way You have to set this up & then insert the OP Bolt that actually creates the flaring puts a tremendous stress on the other parts of the tool & quite frankly I was leery that it may strip out due to the alloy metal it's made of. There are a couple of other concerns with it also-the machined out "tray" that the brake line sits in needs to be knurled in some way to keep the OP Bolt from pushing the brake line out & w/o the knurling You really have to crank down on the 2 locking bolts to keep it from doing so which brings up a couple more concerns, - the locking bolts are not all that substantial (& again You're screwing them into metal alloy) & if You look at how the tool is designed the 2 locking bolts are at an off set to each other leaving 1 corner of the tool w/o a bolt holding it together at that point (AGAIN You really have to torque the 2 main halves of the tool together to keep the main OP Bolt fm pushing out the brake line) it would make more sense to Me if there were actually 3 or 4 locking bolts instead of just 2 to hold the main body of the tool together. Yes, it does work, & it didn't brake/strip out, but if it would have been made out of case hardened steel instead of metal alloy & also had (preferably 4 instead of 2 locking bolts) & the 4 locking bolts being made out of a heaftier size case hardened steel I would have given it a 5 Star rating. 1 other thing, I actually had to take the handle off the tool (it just screws out/in) & put the main body of the tool in a Vise in order to flare the tubing. I can't imagine having to crank down on the OP Bolt how in the World You could flare the brake lines with them installed on the Vehicle w/o having to use a Vise. If You can, mo' power to You, You're a "better Man" than Me-😁 ! THE LORD Love's You !!! Best, PawPaw C
J**S
Great tool
Works great.
B**S
I was nervous but it worked great. Thumbs Up
I work on older classic cars that have steel tubing that doesn't work as easily as the new stuff. A common problem with most hand held flare tools is the tube will not bubble cleanly because the clamps won't hold the tube well enough or the tube is too hard to bubble. Removing the tube to flare it on a bench mounted tool isn't an usually option. I was nervous but this tool worked like a charm. I would recommend this tool for others.
C**J
The best
This is hands down one of the easiest flaring tools I have ever used. I flare 2 lines on the under side of the car in less then 5 minutes. The design of this tool is fantastic, the size is great for working in small areas. This is a durable tool with great control. worth every penny to have in your tool box specially if you live in a rust belt.
A**R
Perfect doubles flares every time
I had also bought one of the cheap vice-held sets that wasn't fit for purpose. This, however, is a good quality item that produces perfect double flares every time. The grip holds the pipe firmly without damage and without needing to overtighten the nuts. The best thing is that all the critical settings, e.g. how far the pipe protrudes, how much the formers should be tightened down, are all controlled so no guesswork is required. Also, the formers are kept square to the pipe producing nice symmetrical flares - this is the big weakness with the cheap sets. Great tool and well worth the money.
G**N
Smart tool
Better than other pipe flange we have a lot easer to use
M**L
Worth Every Penny
I have had this tool for a while now and wanted to use it for a few different times to give and accurate assessment...well here's my story....For decades I have been using those cheap flare tools. The ones that come in the cheap plastic box (usually red in color) The ones where you clamp the tube in the hole between two die halves using the undersized wing nuts that you could never get tight enough to keep the tube from slipping. I've had to redo more flares with those cheap tools than i care to even remember. They rarely came out perfect, they were always slanted or not quite flared enough...but i do remember all of the skinned knuckles!! Just to get one good flare could take multiple tries and the better part of and hour. Well i had to redo the entire braking system on my old jeep. I was just dreading this job. So I got on everyones favorite video site and looked or a different way. There I found a video reviewing this Capri brake flare tool. I was impressed with the video so I ordered one. When it arrived i followed the instructions did a couple of practice flares. No kidding, they all turned out first try. I never knew it could be this easy. Once I got the hang of it i could do a flare in a minute or two rather than the normal 1/2 hour or so. I was able to unscrew the handle and place the body of the tool in my vise which made flaring even easier...it is near impossible to to use the cheap tool with a vise as the vise jaws are in the way and you also have to remove the tool from the vice and undo the wingnuts every time you started a new flare...With the Capri you can leave it in the vise until you are finished all of your flares!! ...and...you can use a wrench or a ratchet to create the flare rather than twisting with your bar hands on those other near useless cheap tools. also, this Capri tool appears to be made of hardened steel as my vise did not mar it up much even after being clamped tightly....Spend the extra money on this quality tool and forget the other ones even exist. You can thank me later...would recommend 5 stars.
A**1
Fait le job.
Bien. Fait le job.
H**R
börtel gerät
genau wie beschrieben
Trustpilot
2 weeks ago
2 weeks ago