Tool Chuck is the Atlas Copco service part carried under part number 3310148400. This part keeps the steel captive in the tool under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.

If you are working from a machine rather than a part number, start at the parts breakdown index, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco tool range. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.

• Part number: 3310148400
• Manufacturer: Atlas Copco
• Crowder SKU: AC-3310148400