Rotation Chuck is the Atlas Copco service part carried under part number 3121082600. This part keeps the steel captive in the tool under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.

If you are working from a machine rather than a part number, start at the full diagram library, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco lineup. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.

• Part number: 3121082600
• Manufacturer: Atlas Copco
• Crowder SKU: AC-3121082600