Once you cut the patch it may have sharp corners and edges.
Cut holes in gutters.
Step 1 is to draw the shape of the hole and drill s few holes around that shape.
Then i used a fine tooth metal cutting blade in my jig saw.
Place the blade in the 90 degree or right angle grooves of the miter box or on the line drawn with the square and cut the vinyl gutter firmly.
This is the thing that connects the gutter and downspout together so it is important that it is placed correctly and securely.
Here you can see the shape of the downspout flange i had.
Step 2 drill four holes in each corner of the outline you made of the sleeve drill one hole.
If the patch isn t already small enough to lay flat against the inside of the gutter and over the hole cut it down to size with your metal snips.
This one came with holes in it for rivets.
Make sure the patch is large enough to overlap the hole by at least 1 in 2 5 cm on all sides.