Ordering by number: this is 3121538800, the Atlas Copco handle compression spring. This is what the operator holds. Handle components on a tool absorb vibration and get dropped, so they wear out on calendar time rather than run hours.

Give us the model and serial off your machine and we will confirm the fit; the parts diagram hub and the Atlas Copco tool range are the other two places to start. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.

• Part number: 3121538800
• Manufacturer: Atlas Copco
• Crowder SKU: AC-3121538800