- Low speed handpiece: 10: 1 drive. - Chuck type: push button. - Water spray: external. - Bur applicable: hand-use file. - Rotation: 90-degree reciprocating. - Used for: Contra angle for Endodontic treatment. - Reduction：10:1 90º reciprocating rotate head. - Max: 4000RPM. - For File burs. - Notice: The Handpiece is only for hand use files. **For further product information, please contact Chat Support**