Ordering by number: this is 3376608102, the Atlas Copco trigger retainer. It governs how air reaches the working end of the drill. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
It appears on the MHC5 Hydraulic Core Drill breakdown. Check it against the reference number on the diagram first; serial breaks change what fits.
Everything else on that machine is one page away on the full diagram library; complete tools are on the Atlas Copco tool range. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3376608102
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3376608102
- Listed on breakdowns for: MHC5 Hydraulic Core Drill

