
What is a flare nut wrench?
The flare nut wrench, also known as a brake wrench, is one of the most basic tools available. As one of the most common varieties of wrench — it's included in any basic toolbox set and can be found in every hardware or auto parts store — they can be considered simple and are occasionally passed over in favor of more elaborate, specialized tools.
What kind of wrench do you use to disconnect fuel line?
An article on overhauling the carbs on a Ford 8N tractor says to use a flare nut wrench to disconnect the fuel line. How important is it use that kind of wrench, vs. an open ended wrench? Show activity on this post. Using a flare nut wrench (aka line wrench) should be used if it is calling for it.
What is a line wrench used for?
A line wrench is ideal for any form of fitting that is in-line – such as brake line or any type of cables. It complements the works of small torque wrenches. Like the flare nut wrench, it also has a hexagonal shape that allows it to have a good grip, which helps to reduce the chances of the metal from stripping.
What is an open head wrench used for?
The open-head design allows users to loosen tighter nuts and fittings with a decreased chance of edge stripping and lets the wrench maneuver to a fastening regardless of any cables or tubes linked to it. Flare nut wrenches can also be found with hinged heads, allowing users to reach connectors in harder-to-reach places.

How do you use a flare nut tool?
0:041:02HOW TO USE A LINE WRENCH !! - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis is what a proper. Line wrench looks like it's basically a closed end wrench with one side open.MoreThis is what a proper. Line wrench looks like it's basically a closed end wrench with one side open. So you can get a greater grip on the bolt. Because if you use a regular open end wrench.
What's a flare nut wrench?
Flare nut wrenches and wrench sets (also known as brake wrenches, grip wrenches, or line wrenches) have an opening in the wrench head that allows a brake line or obstruction to pass through it.
Do you need flare nut wrenches for brake lines?
2:464:39DON'T USE THAT WRENCH ON THAT!!!!! - YouTubeYouTubeStart of suggested clipEnd of suggested clipYeah everybody should have these if you're ever gonna do a brakes on your vehicle. I recommend toMoreYeah everybody should have these if you're ever gonna do a brakes on your vehicle. I recommend to have an assortment.
Is a flare nut wrench the same as a line wrench?
Brake line wrenches (flare nut wrenches or simply line wrenches) serve a specific purpose. Domestic cars often use 7/16-inch and imports 10 mm. Brake line wrenches (often called flare nut wrenches or simply line wrenches) serve a specific purpose in a mechanic's toolbox.
When should a flare spanner be used?
Flare nut spanners can fit fasteners that are inaccessible to ring spanners, while retaining the stability provided by a ring head. They are designed for use on fasteners that are attached to tubes, for example, on the end of vehicle brake pipes or plumbing pipes.
How do you tighten flare nuts?
1:322:14How to Install a BrassCraft® Flare Fitting - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing one wrench to stabilize the fitting the other to tighten the nut tighten. Until the assemblyMoreUsing one wrench to stabilize the fitting the other to tighten the nut tighten. Until the assembly feels solid.
Why is there a small opening at the end of a line wrench?
They allow access to difficult to reach fasteners. Should be used on bolt and nut heads 1/4" and smaller. Adequate on bolt and nut head sizes between 1/4" and 3/8". Is strong enough to handle bolt or nut heads from 3/8" to 1/2".
How do you loosen a brake line?
1:245:46Trick to Removing Rusted, Seized Brake Line Fittings - YouTubeYouTubeStart of suggested clipEnd of suggested clipBut when you spray it on the hot part since the fluid is colder. It's going to suck it right in nowMoreBut when you spray it on the hot part since the fluid is colder. It's going to suck it right in now let that sit for about 10 minutes get her nice and hot so the metal starts to expand.
What is a crows foot tool?
Crowfoot wrenches (also known as tight clearance offset sockets or crowfoot socket wrenches) are open-end type wrenches without a handle or shaft. Wrenches can access fasteners from the top and side and in tight spaces where a regular open-end wrench can't reach.
What type of flare is best for brake lines?
All brake lines need to be double flared, due to the high hydraulic pressure. If your brakes leak or the hoses crack, it could prove to be fatal. Single flared lines are suitable for low-pressure lines in other applications, but not your vehicle's brakes.
How do you use a Crowfoot Flare nut wrench?
0:575:16How To Use a Crowfoot Wrench with a Torque Wrench - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou're applying the force here at the handle of this torque wrench. And then the distance. BetweenMoreYou're applying the force here at the handle of this torque wrench. And then the distance. Between the center of this handle. To the center of this square drive would be the distance.
What are the hand tools used to tighten and loosen the flare nut fitting?
WrenchesWrenches are made in various shapes and sizes and are used for gripping, fastening, turning, tightening and loosening things like pipes, pipe fittings, nuts and bolts.
How do you use a Crowfoot Flare nut wrench?
0:575:16How To Use a Crowfoot Wrench with a Torque Wrench - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou're applying the force here at the handle of this torque wrench. And then the distance. BetweenMoreYou're applying the force here at the handle of this torque wrench. And then the distance. Between the center of this handle. To the center of this square drive would be the distance.
What type of flare is best for brake lines?
All brake lines need to be double flared, due to the high hydraulic pressure. If your brakes leak or the hoses crack, it could prove to be fatal. Single flared lines are suitable for low-pressure lines in other applications, but not your vehicle's brakes.
Why can't you put a wrench over a pipe?
You can't get a wrench over one end of the pipe because it is a continuous piece, so this type of tool allows a small opening on one side of the wrench to slip it over the pipe.
Why do you use a sleeve on a fitting?
This prevents damage to the fitting so that it does not get stripped or otherwise damaged.
Can you get a wrench over a pipe?
Picture working on a pipe. You can't get a wrench over one end of the pipe because it is a continuous piece, so this type of tool allows a small opening on one side of the wrench to slip it over the pipe.
Is it a good idea to buy flare wrenches?
It's a good idea to buy a good quality flare nut wrench set since it will last a lifetime!
What are the advantages and disadvantages of using a flare nut wrench?
The biggest advantage of using a flare nut wrench is that it offers a strong grip over the five sides of the nut. Additionally, while a flare nut wrench is mostly used while working on different parts of a car, it is designed for a wide range of applications.
What is the difference between a flare nut and a line wrench?
Although both of them are very similar in their shape and size, there is one difference between them, which is that the flare nut wrench has more applications than the line wrench.
What is a regular wrench?
A regular wrench is the most common type of wrench that features a U-shaped opening on both sides, which can be used for gripping two opposed faces of nuts and bolts. While a flare nut wrench is an open-ended wrench that is designed for fastening or loosening hexagonal nuts and fittings. Regular wrenches are mostly used for turning rotatory ...
What are the two most popular wrenches?
Which is why we would like to talk about the two most popular wrenches – regular wrench and flare nut wrench to help you make the right choice!
What is the most common wrench used for gripping two opposite faces of a bolt or nut?
That being said, the most common one out there is the U-shaped wrench that can be used for gripping two opposite faces of a bolt or nut. Furthermore, as the wrench has oriented ends with an angle of 15 degrees, it supports a greater scope of movement – including enclosed spaces!
Which is more powerful, a regular or a flare nut wrench?
Efficiency. While both of the wrenches are commonly used by most users. The regular wrench is considered to be more powerful than the flare nut wrench with its form-fitted design. Regular wrench will also come in handy in most of the applications you may have, whereas the flare nut wrench has particularly specific jobs, which may not be as common. ...
Is a flare nut wrench reliable?
However, the flare nut wrench is deemed to be more reliable as it isn’t as prone to accidents compared to the regular wrench.
What is a flare nut wrench?
The flare-nut wrench is a specific type of wrench with five sides. It is open-ended so that it can be used for hexagonal nuts and fittings. Many people mistake the flare-nut wrench for a box or ratchet wrench, but there is an open head instead. The head has a 15-degree angle with grooves so that the wrench fits tightly over different sized flare fittings and hex nuts.
What is a double sided flare nut wrench?
Many flare-nut wrenches are double-sided. What this means is that there are two heads that face in opposite directions. This will allow you to loosen tight fittings quickly and smoothly without readjusting. Additionally, the open head lets you loosen nuts and fittings without the risk of edge stripping.
What wrenches are used to loosen hexagonal nuts?
Obviously, flare-nut wrenches are best for tightening or loosening hexagonal nuts and fittings. This makes them versatile and useful, especially for working on cars or plumbing.
Why are flare nuts better than regular nuts?
Flare-nut wrenches are advantageous because they have more powerful gripping powers. It’s 5-sided design makes it much more snug around different nuts. As a result, it is better at loosening or tightening nuts than the regular wrench.
How many sides does a flare nut have?
Simply put, what distinguishes these two wrench types is their head shape. The flare-nut has five sides, while the regular only has two. This makes the two wrench types ideal for different scenarios.
Why is it important to keep a regular wrench in your set?
Since the regular wrench is used frequently, it is really advantageous to keep a regular wrench in your set because you can use it for a variety of purposes. This U-shape design means that it can fit most shapes or designs. It’s versatile use makes it an essential tool to just about any workplace or home.
What is a U-shaped wrench?
Though there are many types of regular wrenches, the U-shaped wrench is the most popular. It is often used to grip opposite faces of a bolt or nut. It normally has oriented ends that are angled at 15 degrees. This allows the wrench to provide a greater scope of movement.
What is a flare nut spanner?
Flare nut spanners are designed to spread the load on the soft flare nuts.
How does a flare spanner work?
A flare nut spanner engages on four faces of the nut, as you can see from the picture below. The spanner has lips at the front which ensure it engages on the inside of the spanner slot. Most of the force is still born by the two opposing faces, but with well-defined engagement with the spanner it is possible to shape the spanner so that it contacts the nut more towards the centre of the nut faces with a wider contact area, in the same way as a good box wrench does, instead of on the corners of the nut as an open-ended spanner does.
What is an open end spanner?
An open-ended spanner only engages on two faces of the nut. As you can see in the picture below, the inside of the spanner slot is not shaped to engage with the nut. Open-ended spanners are used where the only possible access to the nut is pushing it across the faces of the nut.
When undoing some bolts eg clutch slave cylinder it seems a lot of people use a?
When undoing some bolts eg clutch slave cylinder it seems a lot of people use a flare nut wrench since the open part allows you to get around say a pipe which a normal Socket would not do.
What is a Dewalt flare nut wrench?
The Dewalt flare nut wrench set (Model number DWMT719235) is a Taiwan-made flare nut wrench set. Its chamfered edge makes it easy to engage and disengage it from fasteners. The manufacturer of this wrench has taken into consideration the need for more grip so they came up with a stamped hashmark pattern on the wrench. This wrench is great and would deliver without breaking the bank.
What is a metric flare wrench?
The SATA metric flare nut wrench is a very useful tool for the removal or replacement of nuts on brakes, air condition lines and generally for working on lines whether by a mechanic or technician. It shows off its ability to grip 5 sides of any fastener and boasts of less slippage and rounding than a traditional crowfoot wrench.
What is a Sata nut line wrench?
The SATA metric flare nut line wrench is a China-made metric flare wrench. It comes in a set of 3 wrenches that are made from alloy steel, finished with chrome’ and fully polished. This product is still growing in awareness but already it shows a promising result.
What is a greatneck nut wrench?
The GreatNeck flare nut wrench is a China-made metric flare nut set. This flare nut wrench is the best for small projects, mechanic repair, or maintenance service. It comes in 3 sets that are made from drop forged steel, plated with chrome, and fully polished to give a nice, easy to clean finish.
What is FN-006M?
This Genius tool FN-006M is a metric set flare nut wrench made of chrome vanadium steel, fully polished, in Taiwan. It is the way to go if you are looking for a buddy for household chores, it would do the work like a champ they are designed to do well over a lifetime of heavy use.
What is the model number for a Craftsman flare nut wrench?
The craftsman flare nut wrench set with model number 9-44096 is a professional standard plus metric wrench set. This wrench has a combination of 6 metric and 5 standard wrenches that are built to withstand rugged performance.
What is flex head wrench?
The OEM tool flex head wrench is a Taiwan-made metric flare nut wrench. When the desire for a flexible crowfoot tool that has a dynamic use across many jobs whether working in a mechanic shop on brake lines or plumbing at home comes to mind, this OEM set pops up quickly. It offers great wide use. It is a premium choice if you have to work on clutch slaves and tucked away master cylinders etc.
When to use flare nut wrench?
Using a flare nut wrench (aka line wrench) should be used if it is calling for it.
Can flare wrenches round off?
Depending on the size and material the fitting is made from, it can be very easy to round off, the flare wrench lowers that chance.

Overview of The Flare-Nut Wrench
Overview of A Regular Wrench
- Most people are pretty familiar with theregular wrench, but it is helpful to look at it in more detail. Though there are many types of regular wrenches, the U-shaped wrench is the most popular. It is often used to grip opposite faces of a bolt or nut. It normally has oriented ends that are angled at 15 degrees. This allows the wrench to provide a greater scope of movement.
Flare-Nut Wrench vs Regular Wrench: A Detailed Comparison
- Design
Edge:Depends Both the flare-nut wrench and regular wrench are going to have a head and handle. Generally, regular wrenches have longer handles than flare-nut models, but that can depend on the exact model. As for the head, a flare-nut wrench is 5-sided. A regular wrench, on the other hand, … - Power
Edge:Depends Flare-nut wrenches tend to have more gripping power. Since the models are more fitted, they can more snugly grip small nuts and other fitted hoses. The U-shaped design of regular wrenches, on the other hand, means they don’t fit or grip as tightly as flare-nut wrenches. With th…
Which Is Best For Me?
- Deciding between a flare-nut wrench and a regular wrench can be difficult since they are similar, and both come with substantial advantages and disadvantages. To put it simply, you should get a flare-nut wrench if working with small nuts, especially if you are in the automobile or plumbing industries. On the other hand, you might want to get a regular wrench for versatile or non specifi…
Conclusion
- The flare-nut wrench and regular wrench are both highly useful, but you should select the flare-nut wrench when working on nuts, especially within the automobile or plumbing industries. Regular wrenches, on the other hand, are better for bolts and general use. If you aren’t sure what your intended use will be, I recommend getting a regular wrench. It is much more versatile and useful…