The D16-1 SET4 is designed for slow-speed rotary work in general dental surgery, such as finishing, polishing, and removing soft decay. The push-button chuck holds the bur, and pressing the button releases it between stages, while the 1:1 transmission ratio delivers the motor speed of about 20,000 rpm straight to the bur.
For restorative treatment rooms and hospital dental departments, the questions that matter are about the room. How much space does the motor take at the chair, what does the unit have to supply, and how loud is the instrument? The specification answers each one directly. The air motor measures 78.3 mm in length and 19.3 mm in diameter, the air supply is 0.3 MPa, and the sound level is 70 dB or less.
That last figure suits a treatment room where the dentist, the assistant and the patient talk through the appointment. It belongs to the set running on its quoted supply.
The machine heads are CNC-machined as integrated pieces for high concentricity, and the anti-suction, dust-proof structure makes it harder for grinding dust to enter the bearing. A practice that stocks several units of the set uses one order code, one air figure, and one bur standard for all of them, which keeps preparation for each room the same.
Assistants and practice managers handle the instrument's supply side. They see one code on the order, one air figure for the unit and one bur standard on the shelf. That is a short list for any treatment room.

