CNC Core Bit Adapter for 5/8-11 Core Bits
The Diamax CNCADP connects a compatible core bit with a 5/8-11 female thread to a CNC tool holder with a 1/2 Gas female connection. Both ends of the adapter have male threads. It lets you use compatible threaded core bits in a CNC drilling setup.
Thread Connections
- Core bit end: 5/8-11 male thread.
- CNC holder end: 1/2 Gas male thread.
- Maximum adapter speed: 10,000 RPM.
Specifications
| Brand | Diamax |
|---|---|
| Model / SKU | CNCADP |
| Connection | 5/8-11 male to 1/2 Gas male |
| Application | Compatible core bits on CNC tool holders |
| Maximum adapter speed | 10,000 RPM |
Check Compatibility Before Ordering
Match both connections to your core bit and tool holder. This is the CNCADP threaded adapter; it is not the CBADPTR drill-chuck adapter. The 10,000 RPM rating applies to the adapter only. Follow the lower operating limit specified for your core bit, holder and machine.
Browse our core drill bits and CNC adapters, or check the Diamax specifications.

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