This is the Tamco/Toku rotation sleeve – 3-1/4″ part number 430101H50, Crowder SKU TK-430101H50. 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.
Crowder’s breakdowns list this part on the TJ 15 Rock Drill (RD 30). The tool itself is the Tamco/Toku TJ-15 Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
Work through the rest of the assembly on the same breakdown, or start over from the parts diagram hub. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 430101H50
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-430101H50
- Listed on breakdowns for: TJ 15 Rock Drill (RD 30)

