Handpiece Terminology - Dental Handpiece Repair ...
The part in the handpiece turbine used to hold the bur. Collet. Another word for the chuck mechanism. Connector. Attaches the handpiece to the dental delivery unit that supplies air and water to the handpiece. There are four types of standard U.S. connectors. They include the 2, or 3-Line (also called a Borden) and 4-Line.
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