Tool Chuck Kit – 1-1/4″ is the Atlas Copco service part carried under part number 9234000548. It bundles the service items for one area of the breaker so a rebuild can be done in a single pass.
The published breakdown lists it on the Cobra Pro Gas Paving Breaker and Cobra MK1 Gas Paving Breaker, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts breakdown index to work through the rest of the assembly, or the Atlas Copco catalog if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 9234000548
- Manufacturer: Atlas Copco
- Crowder SKU: AC-9234000548
- Listed on breakdowns for: Cobra Pro Gas Paving Breaker, Cobra MK1 Gas Paving Breaker, Cobra TT TT/AWD Gas Tie Tamper

