#$%^&*AU2013200390B220150115.pdf#####ABSTRACT A surgical handpiece with a rotating spindle for receiving the coupling head of a surgical attachment or a cutting accessory. A gear train had plural drive heads that simultaneously rotate at different speeds. A clutch assembly has pins that move along the length of the spindly. The clutch assembly sets the position of the pins so they will engage one of the drive heads. The spindle rotates with the drive head with which the clutch pins are engaged.
