NSK M25 Contra Angle Handpiece: The S-Max M series contra-angles have dramatically improved durability, and feature an updated internal body design and chuck mechanism.
They are NSK’s next-generation standard – a marriage of ergonomic sophistication and smooth cutting feel.
Experience them for yourself.
The ceramic bearings are 25% harder than steel and around half the weight, meaning very little wear, which helps the cartridge to last longer.
Clean Head System
The Clean Head System has an anti-suck back mechanism that stops blood and foreign matter from entering the head from the oral cavity. As a result, the ball bearings and mechanical parts last longer.
The grip has been made slimmer in response to requests for a design that avoids contact with the front teeth when accessing molars.
Push Button Chuck
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.
Single Water Spray
The NSK Single Water Spray effectively cools the surface of the bur with a high cooling effect.
Reference: NSK M25 Contra Angle Handpiece.