Ordering by number: this is Y10101140, the Tamco/Toku O-Ring. It keeps air or oil where it belongs inside the rock drill. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
It shows up in the parts breakdown for the THD 1100N Rock Drill and THD 1100U Rock Drill (CP9A). 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.
Everything else on that machine is one page away on the parts diagram library; complete tools are on the Tamco/Toku tool range. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: Y10101140
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-Y10101140
- Listed on breakdowns for: THD 1100N Rock Drill, THD 1100U Rock Drill (CP9A)
