Vise Pocket ToolThese pocket sized pliers pack multiple functions into a tiny package that fits on a keychain It's a bottle opener with about nine other tools Stainless steel It's a bottle opener with about nine other tools. At least, that's one way to look at it! These pocket sized pliers pack multiple functions into a tiny package that fits on a keychain. The Vise gives you more than plier capabilities thanks to a variety of handy tools.