- High speed handpiece: 1 way spray. - Chuck type: push button Noise: ≤65dB. - Air pressure at the back end of HP: 0.22-0.24MPA (4hole). - Effective range of overload pneumatic protection: 0.3MPa~0.5MPa. - Rotation speed: ≥350,000rpm. *Note that extra delivery fees may be applied to this item. For more info contact Toothpick Customer Support or check out Terms and Conditions policy.