Step 1 is to draw the shape of the hole and drill s few holes around that shape.
Cutting hole in gutter for downpipe.
Make sure to seal the drop outlet to the gutter with seam sealer.
Step 3 file the edges and apply sealant.
Step 1 find the right location.
This one came with holes in it for rivets.
How to cut and install a gutter outlet.
The first thing you should do is decide where the best place to reconfigure one of your downspouts into a gutter.
Insert the drop outlet in the hole and fasten the new downspout with sheet metal screws.
Center the connector around the hole and trace the outside of the connector with the pencil.
Here you can see the shape of the downspout flange i had.
Step 4 secure the sleeve to the gutter.
Step 3 cut the tracing for the connector with a pair of sheet metal cutters.
Then i used a fine tooth metal cutting blade in my jig saw.
Step 2 drill four holes.