Abstract: A surgical handpiece (20) capable of actuating a cutting accessory (24) and drawing a suction through the cutting accessory. The handpiece has a housing (22). A motor (25) internal to the housing drives the cutting accessory. A suction bore (44) extends through the housing. The suction bore is the conduit through which the suction is drawn from the cutting accessory. A valve (52) regulates fluid flow through the cutting accessory and the suction bore. The valve is positionable in a fully opened position, a fully closed position and intermediate positions between the fully opened and closed positions. An indexing assembly (84) mounted to the valve inhibits rotation of the valve when it is placed in at least one intermediate position. This inhibiting of the valve movement provides a tactile indication of the position of the valve when it is located between the fully open and fully closed positions.