This is Tamco/Toku part number 131503021 throttle valve handle bolt, stocked at Crowder Supply as TK-131503021. This is control gear it meters air to the drill. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
Crowder’s breakdowns list this part on the TS 55 Rick Drill (RD 60). Pull up the diagram and confirm the reference number for your serial before ordering.
Everything else on that machine is one page away on the parts breakdown index; complete tools are on the Tamco/Toku tool range. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 131503021
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-131503021
- Listed on breakdowns for: TS 55 Rick Drill (RD 60)

