Feature:- 2 hole or 4 hole standard push button handpiece- Single water spray- It has unique appearance design and fluent outline.- Smooth as silk, it has excellent texture.- With people-friendly design, easy for operation.- With best quality cartridge, easier for cleaning.- With high-speed turbine rotation, it has better performances.- Chucking power of chucking needle is 20N-45N.- It is noise-free and stable.- Applicable Bur: 1.6mm and should be conformed to ISO standard.- Special for operations such as clamping high-speed dentistry machine needle to drill and grind teeth in department of stomatology, it is more professional.