Ordering by number: this is 3111006600, the Atlas Copco rotation chuck – 7/8 x 4-1/4″. This part keeps the steel captive in the rock drill under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.
The published breakdown lists it on the BBD 12T-01 TS-01 Rock Drill and BBD 15E ET Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts breakdown index has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3111006600
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3111006600
- Listed on breakdowns for: BBD 12T-01 TS-01 Rock Drill, BBD 15E ET Rock Drill

