We have 2 holes and 4 holes, you can contact with us what kinds of that you need. We will try our best to help you. Features for dental handpiece. Technical parameter for dental handpiece. 277-316 KPa (2.8-3.2 kgf/cm2). ROTATION SPEED:300,000-450,000 rpm. HEAD HIGHT:14.5 mm(standard). HEAD DIAMETRE:f12.5 mm(torque) f11.2 mm(standard). BUR APPLICABLE:f1.59mmf1.6mm×21mm23mm (diameter×length). All items are in brand new condition unless specified. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. All of our products are CE approved. Please kindly check the copy of the certificate in the listing below. 510(K)Number: K161892.
