Cutters will cut round tubing squarely without causing burrs. You will have to remove burrs if you use a hacksaw. [2] X Research source
The instructions for both types of single flare tools are given below.
Lower the cone down until it is centered over the tube’s end.
On a generating flare tool, the flare is formed in the air instead of in the recessed part of the bar.
Ensure the depth is equal to the edge of your tubing size insert.
Remove the insert and finish advancing the cone into the bell. The bell shape of the tube forms the double thickness flare.
