This is Chicago Pneumatic part number F816123, cross-referenced to 3310103638 ratchet ring, stocked at Crowder Supply as CP-F816123. It drives or indexes rotation. When it wears, the tool still hammers but stops turning the steel evenly.
It is called out in the parts diagram for the CP 9BS Rock Drill and CP 0009 A F E CS ES AC Rock Drill, and on 3 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
Everything else on that machine is one page away on the parts diagram library; complete tools are on the Chicago Pneumatic lineup. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: F816123
- Also listed as: 3310103638
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-F816123
- Listed on breakdowns for: CP 9BS Rock Drill, CP 0009 A F E CS ES AC Rock Drill, CP 9RR 9RRS Rock Drill, CP 9 9S Rock Drill, CP 9A 9F Rock Drill
