This is the Atlas Copco tool chuck part number 3310149900, Crowder SKU AC-3310149900. It holds the working steel in the tool. Retention hardware is a wear and safety item a stretched or cracked retainer lets the steel move, which chews the front head.
If you are working from a machine rather than a part number, start at the parts diagram hub, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco lineup. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3310149900
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3310149900