* Ceramic bearing; * Same as sinol; * High torque drills a handpiece; * Press type handpiece, take the needle more quickly; * The traditional way to clip the car take needle area is larger, not easy to skid, surge safer. * Air pressure: 0.25-0.30MPa; * Rotation speed: ≥300,000rpm(torque); * Chuck type: push button; * Noise: ≤68db.