This is Chicago Pneumatic part number R099374, also listed as 3310103582 chuck – 7/8″ hex X 3 1/4″, stocked at Crowder Supply as CP-R099374. 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 0032 Rock Drill and CP 32A Model L Rock Dril, and on 1 other machine breakdown. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the CP tool catalog covers the machines themselves. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: R099374
- Also listed as: 3310103582
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R099374
- Listed on breakdowns for: CP 0032 Rock Drill, CP 32A Model L Rock Dril, CP 32A B B-O Rock Drill
