This is Chicago Pneumatic part number R104689 front head – complete 1 x 4 1/4″, stocked at Crowder Supply as CP-R104689. It is the business end of the rock drill it locates the tool steel and absorbs the impact reaction, so bore wear here shows up as a loose, rattling shank.
The published breakdown lists it on the CP 32A B B-O Rock Drill.
Everything else on that machine is one page away on the parts diagram library; complete tools are on the Chicago Pneumatic tool range. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R104689
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R104689
- Listed on breakdowns for: CP 32A B B-O Rock Drill
