One of the most common wine openers found in kitchens and home bars around the world is the wing corkscrew, also known as a butterfly corkscrew or an angel corkscrew. They're simple yet efficient, and are very easy to use. Simply center the worm on the wine bottle cork and twist the top handle so it screws in. As it goes deeper, the arms will raise. Once it's fully inserted, just push down the arms, and the cork is removed.