4 hole Features:

1, standard head high speed handpiece2, Rotational speed: 220000-350000round/min.3, Working Air pressure: 0.18-0.30Mpa 4, Water Pressure: 0.198Mpa5, Bur Applicable: 1.59-1.60mm6, Cartridge: Unenclosed, push button7, Handle Material: Aluminum alloys8, Single water spray9, Net weight: 45g10, Noise level: ≤68 dB11, Sterilization by autoclave at (135) °C12, Accessories: Box/cap wrench/needle

Package Included:

-handpiece: 1-Spanner：1- English manual: 1