BEING Dental Handpiece High Speed Turbine Mini KaVo MULTIflex Coupling 4 Holes. 303PQ-K Handpiece No Fiber Optic. BEING high speed handpiece K MULTIflex without light. With ceramic bearings and well balanced rotors. Anti-retraction clean head system. 302 series with big torque head (12.513.02mm). 303 series with standard head (10.812.1mm). Speed: 300,000-380,000rpm (302 series big torque head). 300,000-450,000rpm (303 series standard head). Noise: less than 70db. 4 Hole MULTIflex Coupler (without Light). Similar with K MULTIflex 465RN. With 4 hole standard connection. Rotary ring spray regulation with multiple indent locking posisitions.