Dental Denist Fiber Optic Handpiece High Speed E-generator 4 Holes Air Turbinehealth & beauty1.Low noise， large torque， vibration free， heating free and high illumination.2.Push button， Triple water spray， LED handpiece integrate E-generator.3.4-Hole Push Button system.4.Back siphonage prevention sanitation handpiece.5.Unique electric generator， just a little air can generate sufficient power.Technical specification:Body size£ºL134 * H17Head size£º? 12.5 * H14Bur size£º? 1.6Chucking power:20-45NSpray£ºInternal triple sprayChuck£ºPush buttonSterilization by autoclave at (135) 0CNoise level:¡Ü70 dBAir Pressure£º0.22¨C0.3 MPaRotate speed£º250，000¨C350，000 r.p.mPackage Include:1x Handpiece 1x Cap wrench 1x Packing box 1x Operation manual