This is the Atlas Copco tool chuck complete – 1-1/4 x 6″ part number 9234021403, Crowder SKU AC-9234021403. This part keeps the steel captive in the breaker under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.
It is called out in the parts diagram for the Cobra ProE Gas Breaker. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
The full diagram library indexes every breakdown we publish, and the Atlas Copco lineup has the tools these parts go into. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 9234021403
- Manufacturer: Atlas Copco
- Crowder SKU: AC-9234021403
- Listed on breakdowns for: Cobra ProE Gas Breaker
