Internal cooling system with extra water tube. Excellent atomization makes complete flushing. Waterpipe/ air tube separated structure. Irrigation: internal spray and external water spray. Features : - Gear ratio: 1:1. - Air pressure:245-392kPa. - Atomized water pressure:200kPa. - Atomized air pressure:200kPa. - Rotation Speed:14,000-20,000r/min. - Bur applicable:Φ2.35mm. - Noise :≤70dB. **For further product information , please contact Chat Support**