This foil shear is not up to snuff. It's sometimes more frustrating to use the shear, because it takes just as much effort as cutting the foil with a wine key. It's supposed to make the process easier, and it doesn't.

I have trouble using this unless it is just right on the bottle, but it could be user error.

Love this cutter! I bought this to replace a horrible one I had that didn’t work even when it was new. This one is so easy to use and cuts a clean line through the foil.