Description:HN-KMQAir pressure: 180-300KPa (26.1-43.5psi)Chuck systems: push buttonRotate: 370, 000-420, 000min-1 Torque: 18WBur shank: ISO Standard (φ1.59-1.60mm) Fiber bulb quality: light via optical glass rod, light intensity can be adjusted by adjusting the Voltage from 2.5-3.5v on the Light Powder System, it significantly improves the visibility of the working area and diffuses a perfect white and natural light 4-ways water spray: the superior cooling with 4 separate air and water nozzles with single-spray system, the air disperses the water to a very highly precise point before contact with the bur, it also guarantee the perfect visibility and the water and air ducts also prevent the blockages. Push button type with the accu-chuck system: the locking and drive technology are at a very highly precise level in the market, due to the parts machined to exact micron rectified and honed for enhanced reliability and reduced noise level, free from any imbalance and vibration. Ceramic bearing: longer service life, greater precision, less noise, less vibration, superior quality ball bearing made from silicon nitride (ceramic) reduced the ware compared with traditional bearings; furthermore they are able to withstand high temperature, are resistant to corrosion. Quick coupling applicable for KAVO MULTIFLEX