This is the American Pneumatic Tool driver retainer part number 1280583038, which replaced the older number 18716, Crowder SKU APT18716. 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 307 & 317 Needle Scaler breakdown. It comes off the APT 307 Pneumatic Needle Scaler. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583038
- Previous part number: 18716
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18716
- Listed on breakdowns for: 307 & 317 Needle Scaler

