This is Chicago Pneumatic part number R075596, which also shows up as 3310104578 chuck – 7/8″ hex X 3 1/4″, stocked at Crowder Supply as CP-R075596. It holds the working steel in the rock drill. Retention hardware is a wear and safety item a stretched or cracked retainer lets the steel move, which chews the front head.
You will find it on the diagram for the CP 0022KL Rock Drill.
The parts diagram hub indexes every breakdown we publish, and the Chicago Pneumatic tool range 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: R075596
- Also listed as: 3310104578
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R075596
- Listed on breakdowns for: CP 0022KL Rock Drill

