How to Use a Flaring Tool? Complete Guide

Flaring Tool

This post will introduce what is a flaring tool and how to use it. 

A flaring tool utilizes pressure so a fabricated mechanical joint is made for joining/sealing copper tubing with a flare connection. As a result, you can connect tubes to each other/other fittings. How to use a flaring tool?

A capable double flaring tool kit is necessary to flare a brake line; it should be strong, reliable, and contain all the parts you’ll need to get back on the road safely.

What Are Flaring Tools?

These are the implements used to flare out the ends of copper pipes and tubing so that they can securely connect to fittings or other pipes or tubes. With these tools, create a flared or conical end to the pipe or tube. Because the angles of the flaring vary, flaring pipe and flaring tube are not the same. Unlike pipe flaring, which is at a 37-degree angle, tubing flaring is at a 45-degree angle.

Tools for flaring use pressure to expand the end of pipes or tubing to form a funnel or flared shape. You can make deeper, wider openings for pipes and tubing using swaging tools. The use of these tools varies depending on the application of the pipes and tubing.

Flaring Tool

How to Use Flaring Tools?

Before using these skills on any job or project, it’s critical to take it slow and practice if you want to learn how to use a flaring tool in San Jose, California. These tips will ensure you correctly flare pipes and tubing:

  • Prepare pipe or tubing: Make the desired length of pipe or tubing by cutting it. Use a deburring tool, pipe reamer, or sharp knife to remove any burrs from the end.
  • Give yourself room: Make sure the pipe or tube has a slight protrusion at the end as you insert it into the appropriate clamp hole. Have at least ½ inch of pipe or tube pushed through the clamp if you are flaring a ½-inch pipe or tube.
  • Fasten clamp snugly: The flaring tool will simply push the pipe or tubing through the clamp if you have not sufficiently clamped it. To ensure that your pipe or tubing is securely positioned, tighten those wingnuts down completely.
  • Adjust hands as needed: You will hold the long end of the pipe in one hand and secure the flaring tool against the pipe or tubing with the other hand when you first insert it into the pipe or tubing’s end. Move the hand holding the flaring tool to the lever and slowly rotate it once it is securely fixed in the pipe or tubing without being held. The other hand that was holding the pipe should now hold the clamp.
  • Avoid overflaring: Don’t get carried away flaring the end of your pipe or tubing. The end of the pipe or tubing will be overextended and rendered useless by excessive flaring. You could also inadvertently split the copper.

Read More: How to Use a Laser Level?


Here are some steps that describe the usage of these instruments:

  • The tubing should be placed at the desired flare height after being slid into the correct size slot.
  • The bar’s grip on the tubing should then be tightened. Often, people tighten the butterfly nuts incorrectly. Make sure that you first completely tighten the nut that is the nearest to the tube. As much as you can, tighten it manually.
  • The other nut should then be tightened, at which point the bar should have a secure grip on the tubing. Just until the two bars touch, don’t exert too much force by tightening.
  • A turn will cause the tool’s forged steel yoke to lock after it has slid over the bar.
  • The tubing end is gradually widened by turning the precision threaded feed screw counterclockwise, which draws the instrument’s tip into the tube and then drives the copper into the flaring bar’s beveled mating surface. While driving the cone into the tubing, you can back the cone off a few times to burnish the copper for a better seal. To ensure proper operation, keep the flaring cone clean and the tool lightly lubricated.

Final Words

Without a doubt, a brake flaring tool should be included in every automotive tool kit. Not only can you replace your brake line yourself, but it also enables you to work from home and produce work of a high standard that looks professional.

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