#$%^&*AU2020201756A120200326.pdf#####ABSTRACT A surgical instrument including a tool, a handpiece, and a locking member. The handpiece includes both a coupling member configured to cooperate with the tool, and a driver for rotating the tool. The locking member is 5 movable from an unlocked position to a locked position in response to centrifugal force generated during rotation of the locking member. The locking member is configured to secure the tool to the handpiece when in the locked position.4/4 (0 coco /0 / 001 T 00, (Nj / (Njq Lo