US Patent 7351900 Drum key having deployable handle

A drum key for adjusting the bolts that secure and tune the drum heads or skin that close one or more ends of a drum. The key is constructed in an elongated body with one end having a socket configured for engaging onto the head of a tightening bolt used to tighten and tune the drum head or skin. When the body of the key is articulated arms or wings embodied within the body of the key extend, deploy or spread to provide a leaver arm for tightening the tuning bold on a drum. After the tightening and or tuning operation is complete, the arms or wings are securable back within the body of the drum key.