Here is what worked for me.
Cutting hole in gutter for downspout.
Step 2 drill four holes in each corner of the outline you made of the sleeve drill one hole.
Slide a rivet shaft into the rivet gun.
Step 1 is to draw the shape of the hole and drill s few holes around that shape.
Press the head of the rivet into the drill hole and squeeze the handle of your rivet gun to lock the rivet into place.
Repeat the drill and rivet on the other side of the downspout to connect it to the main gutter.
Make sure the patch is large enough to overlap the hole by at least 1 in 2 5 cm on all sides.
On the bottom of the gutter itself take a pencil or marker and trace the outline of a sleeve.
How to cut and install a gutter outlet.
Keep your thick work gloves on.
This is the thing that connects the gutter and downspout together so it is important that it is placed correctly and securely.