Bar tools are essential instruments used in the preparation and serving of drinks at a bar. Common tools include a shaker for mixing cocktails, a jigger for measuring spirits, and a strainer to separate liquid from ice or solid ingredients. Other important tools are the muddler, used to crush herbs or fruits, and the bar spoon, which helps in stirring drinks. In addition to these, a bottle opener and a corkscrew are necessary for opening beer bottles and wine bottles, respectively. A zester can be used to add citrus peels for garnish, while a cocktail glass is essential for serving the finished drinks. Together, these tools help bartenders create a variety of beverages efficiently.