The extra slim head and body design greatly improves direct and indirect visibility to the oral operational field. This includes increased visibility of even difficult access areas in the oral cavity. In some instances cartridges are easily replaced in surgery with the accessory tools supplied with the new product. The prophylaxis handpiece head incorporates the unique NSK paste defense system which prevents dust and polishing paste debris from entering the handpiece. In addition, the NSK dlc coating on the rotor prevents possible breakage caused by surface abrasions from the polishing paste. The clean head system has an anti-suck back mechanism that stops blood and foreign matter from entering the head from the oral cavity. The high-precision gears run quiet and are supremely durable, which also reduces uncomfortable vibration. Push button chuck is NSK's original push button auto-chuck mechanism that tensions the bur grip during rotation. - It allows one-touch bur insertion and removal without tools. The bur lock mechanism is designed so that bur retention strength increases when high loads are applied to the bur. Features: - Push button chuck. - Material: Stainless Steel. Technical information: - Gear ratio 1:1 direct drive. - For CA burs (Ø2.35). - Max speed: 30,000 r/min. **For further product information, please contact Chat Support**