桴, 枹, or 撥 (ばち)
(see below for different kanji usages)
generic word for a plectrum OR drumstick;
1. a hand-sized, paddle-shaped pick used for plucking the strings of the shamisen or biwa; may be made of wood, ebony, ivory or tortoise shell (and now plastic)
撥 is the standard kanji for this type of bachi
2. a drumstick; taiko bachi come in various sizes – small and light for tsukeshime-daiko, heavy and strong [dense] forchū-daiko, large and lightweight for ō-daiko; lighter bachi made of hinoki (cypress) or hou (magnolia) wood, heavier ones of kaede (maple), kashi (oak) or nara (scrub oak); the length, diameter, density and taper of bachi affect the sound of the drum being played.
桴 is the standard kanji, but 枹 may also be used