Image: Excavator jackhammer
![Excavator jackhammer](/images/thumb/1/11/Excavator_jackhammer.jpg/800px-Excavator_jackhammer.jpg)
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Description: An excavator-mounted hydraulic jackhammer being used to break up concrete.
Title: Excavator jackhammer
Credit: http://www.spangdahlem.af.mil; gallery. exact source
Author: Eydie Sakura, U.S. Air Force
Permission: This image or file is a work of a U.S. Air Force Airman or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image or file is in the public domain in the United States.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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