S-Max M Series Air-Driven Handpiece-Standard head Non-Optic Connects directly to W&H (RQ Type) Coupler • Power : 26 W • Speed : 325,000-430,000 min-1 • Head Size : ø12.1 × H 13.3 mm • Stainless Steel Body • Ceramic Bearings • Push Button Chuck • Clean Head System • Cellular Glass Optics • Simple Cartridge Change • Quattro Spray Non-Latex