Ratchet Ring is the Chicago Pneumatic service part carried under part number R137740 (also carried as 3310103637). 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 0069 Rock Drill. That machine is the CP 0069 Pneumatic Rock Drill if you are pricing a replacement rather than a repair. Check it against the reference number on the diagram first; serial breaks change what fits.
Everything else on that machine is one page away, and the parts diagram library indexes every breakdown we publish. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R137740
- Also listed as: 3310103637
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R137740
- Listed on breakdowns for: CP 0069 Rock Drill
