Fiber Optic Dental Handpiece with CE. Mini/ Torque/Standard fibre optic handpiece, Push Button, Quick Coulping, 3 holes spray. 1 Working pressure: 0.22 ~ 0.3 (mpa) 2 Working speed: 300 ~ 400 (Krpm) 3 Torque: 0.35 ~ 0.45 (N) 4 water flow :90-110 (ml / min) 5 Working pressure: 0.2 ~ 0.23 (mpa) 6 atomizing air pressure: 0.3 ~ 0.35 (mpa) 7 Sound: ≤ 65 (db) 8 light brightness: 16000 ~ 20000 (lux) 9 Color Temperature: 2500 ~ 3000 (k)