Once you’ve finished cutting your tubing, it may be necessary to remove the burrs left behind on your cut. Burrs are the little metal shavings that turn up on the inside wall of your tubing at the cut point. These shavings must be completely removed or they will compromise the seal and integrity of the entire HVAC/R system. You’ll notice far fewer burrs if you use a sharp cutting wheel.
The tools covered are for use with soft copper only, unless otherwise noted.
Tube Deburring Tool
The blade on the Tube Deburring Tool is very sharp; pay close attention to how you operate this tool to prevent personal injury. Like cutting, it is very important that your deburring tool has a sharp blade. This particular model comes with extra blades inside the handle.
- Point the end of the tubing slightly downward. This allows gravity to work in your favor, encouraging the burrs to fall out and away from the tube. If the burrs fall inside the tubing as you remove them, you must take a moment and clear them out before continuing.
- While holding the grip firmly, insert the deburring blade into your tube and apply a small amount of pressure between the blade and interior wall.
- While applying this pressure, rotate the blade around the interior wall of the tube, shaving the burrs off as you go. Remember, the blade is very sharp. Work carefully and keep your fingers away from the blade.
- Pay attention to whether or not the burr peelings are curling inward or outward as you use your tool. Try to peel them outward so the burrs easily fall out and away from the tube. Notice the burrs will peel up and away from the path of the blade and easily drop out of the tube. Using your deburring tool in this manner makes it far less likely you’ll need to retrieve the burrs that fall inside your tubing.
Deburring should be a fairly straightforward procedure. If the tube was properly cut to begin with, the burrs should easily shave off and fall away. In the best-case scenario, the burrs will require only one pass to remove them. If the original cut was executed poorly, you may find the burrs require far more pressure to remove, most likely resulting in a thin tube wall, which may cause cracking during the flare or swaging procedure.
Tube Reamer and Burr Remover
The Tube Reamer and Burr Remover removes inner and outer burrs from the cut and it too requires little force if the original cut was executed properly. Simply place the tool over your cut, again holding the tube at a downward slant, and rotate the entire tool clockwise until the burrs have been completely removed.
Premium Tube Cutter
The Premium Tube Cutter is also equipped with a deburring blade. This particular blade requires a pearing method of shaving the burrs, and more force. The blade is very sharp so use caution when performing this procedure.
One Final Note on Safety
It’s important to understand how each tool is designed to function and make sure you have all the right tools in your bag to do every job correctly. Attempting to use a tool in a manner it was never intended might result in personal injury, damage to the equipment or destruction of the tool. Also, always be aware of the refrigerant you are working with and the state the system is in when beginning your work. You may or may not be required to perform a lockout procedure before doing anything to the system. Finally, be responsible and always wear eye protection as well as a good pair of work gloves when it’s appropriate.