What is the decibel rating of the model 7765 rotary hammer? Support October 03, 2022 13:37 Updated The 7765 is rated at a maximum average of 90 db. Note: Ear protection is recommended. Related articles Can I put a 1/2" chuck on a 3/8" drill? What is the process for sending an invention or idea to someone for consideration? Where can I purchase parts for my Gesipa Rivet Tool? What can cause premature pad failure? What is the motor diameter of the Porter Cable 7815 router? Comments 0 comments Please sign in to leave a comment.