KERR ENDODONTICS Elements 8:1 Instructions For Use Manual page 45

5 Operation
Hazard from defective chuck system.
The dental bur can fall out and cause injury.
▶ Pull on the dental bur to check if the clamping system works
properly and if the dental bur is firmly clamped. Wear gloves
or a thimble when you check, insert, or remove the bits to
prevent injury and infection.
CAUTION
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