Nov 01, 2006 · Look for a high-speed range of 1,000 to 200,000 rpm, and a low-speed range of 100 to 40,000 rpm (yes, the bur will still cut at 100 rpm). Your low-speed handpiece also should allow you to do endodontic procedures with torque control and auto reverse. The electric motor should be brushless and sealed to allow for autoclave sterilizing.
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