Features: Standard & Torque head high speed handpiece Rotational speed: 220000-350000round/min. Working Air pressure: 0.18-0.30Mpa Water Pressure: 0.198Mpa Bur Applicable: 1.59-1.60mm Cartridge: Unenclosed, push button Handle Material: Aluminum alloys Single water spray Net weight: 45g Noise level: ≤68 dB Sterilization by autoclave at (135) ℃ Accessories: Box/cap wrench/needle Packing List: Dental high speed handpiece: 1 PC