This is the Atlas Copco retainer part number 3378512021, Crowder SKU AC-3378512021. Retaining the tool steel is its whole job. Worn retention lets the shank hammer against the bore and turns a cheap part into an expensive front head.
It appears on the MHC5 Hydraulic Core Drill and LCD 500 & LCD 1500 Hydraulic Core Drill, and on 1 other machine breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the full diagram library to work through the rest of the assembly, or the Atlas Copco lineup if you are pricing a replacement machine. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3378512021
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3378512021
- Listed on breakdowns for: MHC5 Hydraulic Core Drill, LCD 500 & LCD 1500 Hydraulic Core Drill, COR 5/15 Hydraulic Core Drill
