Dental NSK Style Brushless LED Electric Micro Motor / 15 Increasing Handpiece

Technology : Type of motor: brushless motor Internal Spray Three optional settings(1:1/1:5/16:1) Rotation: 2,000-40,000rpm 2000rpm-40000rpm(1:1) 100rpm-2500rpm(16:1) 10000rpm-200000rpm(1:5) Torque: 3.4Ncm Power input: AC 100-240V Size of motor:? 22xL71 mm Weight of motor: 71g Noise level.