Chuck – 1 X 4-1/4″ Hex, American Pneumatic Tool part number 217, listed at Crowder Supply as APT217. This part keeps the steel captive in the rock drill under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.
It appears on the 138 Rock Drill breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
Everything else on that machine is one page away on the parts breakdown index; complete tools are on the APT lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 217
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT217
- Listed on breakdowns for: 138 Rock Drill
