Front Head – Complete, Atlas Copco part number 3111005380, listed at Crowder Supply as AC-3111005380. It is the business end of the tool it locates the tool steel and absorbs the impact reaction, so bore wear here shows up as a loose, rattling shank.

If you are working from a machine rather than a part number, start at the parts diagram library, 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: 3111005380
• Manufacturer: Atlas Copco
• Crowder SKU: AC-3111005380