Then work the tin snips through the downspout and cut along the line until you ve completely cut through the downspout.
Cutting aluminum gutter downspout.
Let go of the trigger when through and then pull the saw back up to its starting position.
Cut the downspout with your tin snips.
Because aluminum is soft and very pliable the cutting should be very easy and smooth.
Don t rush into cutting and maintain the cutting line straight.
Grab one side of the gutter and lower the saw slowly to the gutter.
Begin your cut at one corner on the end you wish to make your cut.
Opt for a workbench and clamps for extra stability.
Cut all the way through at a consistent speed.
Repeat the process for additional cuts.
To cut the aluminum you can use a metal cutting blade with the jigsaw.
Sheet metal pros use double cut tin snips either hand type or electric depending on work at hand.
Cut up the corner to your closest measurement mark.
There is simply no other way to make a nice clean cut in the middle of a 4 water heater vent for example or the downspout tubing in your case.
Cut the closest corner to your first cut to the same spot.
Once you have marked the correct length on the downspout lay it down on a flat surface that has the proper clearance for cutting.
This method doesn t produce the cleanest results.
With the three blades on the inside of the tube hold the crimper against the inside corner of the tube and squeeze.
Now that you ve finished cutting the old downspout is ready to be replaced.
Plug in the saw and squeeze the trigger button.
Away from the cutting area to prevent injury.
Wear protective glasses and gloves and keep all loose jewelry hair etc.
If you re using tin snips you ll want to use one of shears to poke a hole in the downspout along the line you ve marked when you measured.
Step 2 drill four holes in each corner of the outline you made of the sleeve drill one hole.
On the bottom of the gutter itself take a pencil or marker and trace the outline of a sleeve.
This video is about helpful hints cutting the downspout.
Crimp three times across both long edges and twice on the narrow sides.
For cutting any kind of sheet metal tubing the weapon of choice.
Crimp one end of the downspout crimp one end of the short length of downspout with a special sheet metal crimper.