Specialized for impacted teeth (Led available) Borden 2 hole or Midwest 4 hole connection Single spray Anti-retraction Air pressure:0.25-0.3Mpa OPERATION AIR PRESSURE: 0.25Mpa-0.30Mpa(0.25Mpa preferred) ATOMIZATION PRESSURE: under 5.00Mpa(0.3Mpa preferred) FREE LOAD SPEED: 280,000R.P.M. for torque head, 350,000R.P.M for standard head SPRAY: Triple water spray SUPPLY VOLTAGE: 3.0-3.8V GRIP POWER: 25-45N