The Bosch Power Tools 1619PA5591 Armature is an internal motor component used in compatible Bosch power tool models. It rotates within the motor housing, converting electrical energy into the spinning motion that drives the tool. The armature works as part of the tool’s motor assembly and supports strong, consistent power output. Replacing a worn, burned, or damaged armature can help ... https://www.wholetoolbox.com/bosch-power-tools-1619pa5591-armature/1619PA5591.html