1. Clean Head System The patented NSK Clean Head System is a special mechanism designed to automatically
prevent the entry of oral fluids and other contaminants into the handpiece head prolonging the life of the bearings
2. 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