Ordering by number: this is 1280582937 the number that superseded 17664, the American Pneumatic Tool retainer plate. It holds the working steel in the rock drill. Retention hardware is a wear and safety item a stretched or cracked retainer lets the steel move, which chews the front head.
Crowder’s breakdowns list this part on the 109 Mini Rock Drill. It comes off the APT 109 Pneumatic Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280582937
- Previous part number: 17664
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT17664
- Listed on breakdowns for: 109 Mini Rock Drill

