This is Atlas Copco part number 9232120070 retainer ring, stocked at Crowder Supply as AC-9232120070. Retaining the tool steel is its whole job. Worn retention lets the shank hammer against the bore and turns a cheap part into an expensive front head.
You will find it on the diagram for the Cobra Combi Gas Drill/Breaker and Red Hawk Gas Breaker/Drill, and on 1 other machine. 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.
Everything else on that machine is one page away on the full diagram library; complete tools are on the Atlas Copco tool range. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 9232120070
- Manufacturer: Atlas Copco
- Crowder SKU: AC-9232120070
- Listed on breakdowns for: Cobra Combi Gas Drill/Breaker, Red Hawk Gas Breaker/Drill, Cobra Combi Gas Breaker/Drilll- before 2010

