This is Chicago Pneumatic part number R278011 chuck, stocked at Crowder Supply as CP-R278011. 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.
It appears on the CP 9RR 9RRS Rock Drill breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
The full diagram library indexes every breakdown we publish, and the CP tool catalog has the tools these parts go into. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: R278011
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R278011
- Listed on breakdowns for: CP 9RR 9RRS Rock Drill
