Drilling requires the use of adapters, or sub-adapters, depending on your definition of them. As their name implies, they are used to adapt one type of thread to another and can also be used to bridge the gap between other connections.
Mostly made from 4140 material or stronger, they also come in various combinations of thread types and sizes.
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Other common names for these might be:
- Driver Subs
- Balancing Rods
- Cross Over Subs
- Hammer Subs
- Sub Adapters
- Cross Over Adapters
- Float Subs
Connections: Pin x Box, Pin x Pin, Pin x Blank
Thread Types: such as API, NWJ, IF
Measured by Overall Length (OAL) or Shoulder to Shoulder (S/S) length.
Other options to consider:
- Can be stabilized with welded-on "wings"
Contact us to discuss a quote for a custom-made sub to suit your needs or requirements.
