Ordering by number: this is F816159 (also carried as 3310104121), the Chicago Pneumatic chuck – hex. 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 9 9S Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: F816159
- Also listed as: 3310104121
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-F816159
- Listed on breakdowns for: CP 9 9S Rock Drill
