Implant system compatible push button e-generator 20:1 contra angle with led light Inquire Product Description 20:1 contra angle with led light FEATURES: Chuck type: Push button Illumination: LED, e-generator Ratio rate: 20:1 Water system: External water spray Bur applicatible: 2.334~2.350mm Max torque: 70Ncm Noise: ≤70dB