This is American Pneumatic Tool part number 1280583758, previously 02377 rifle bar – 1:35, stocked at Crowder Supply as APT2377. It drives or indexes rotation. When it wears, the tool still hammers but stops turning the steel evenly.
It appears on the 137 Rock Drill breakdown. The complete machine is the APT 137 Pneumatic Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
Work through the rest of the assembly on the same breakdown, or start over from the parts diagram library. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 1280583758
- Previous part number: 02377
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2377
- Listed on breakdowns for: 137 Rock Drill
