This is the Tamco/Toku ratchet ring part number 430442K40, Crowder SKU TK-430442K40. It is part of the rotation mechanism of the rock drill the drive train that indexes the steel between blows. Wear here shows as slow or intermittent rotation.
It is called out in the parts diagram for the TH 800 Rock Drill. Compare it to the reference callout on the diagram to be sure it is the position you need.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the Toku tool catalog covers the machines themselves. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 430442K40
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-430442K40
- Listed on breakdowns for: TH 800 Rock Drill
