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The CorePlus DCEXT250 Drill Bit Extension Bar is an essential tool for professional tradespeople and serious DIY enthusiasts who require extra reach when performing deep drilling tasks with dry diamond core bits. Designed to increase the working length of your existing setup, this extension bar provides reliable performance and secure connectivity for deep-wall penetrations. While it offers excellent versatility, users should be aware of a critical limitation: it is not intended for use with diamond core bits larger than 78mm in diameter to ensure safety and prevent equipment strain.
| Model Part Number | DCEXT250 |
|---|---|
| Brand | CorePlus |
No. The extension is strictly limited to diamond core bits 78mm or smaller in diameter.
The extension uses 1/2in BSP threads. To use it with an SDS drill, you must first attach an SDS-to-1/2in BSP adaptor.
Thread tape is generally not required as the threads are precision-machined, but keep them clean to ensure a snug fit.
No. Diamond core bits are designed for rotary drilling only. Engaging hammer action while using an extension can damage the tool and the bit.
This model provides exactly 250mm of additional length.
Use two appropriately sized wrenches to break the connection; avoid overtightening during setup.
Check that all threaded joints are tight and ensure your core bit is not wobbling; if vibration continues, reduce drill speed.
Setup:
Compatibility:
This extension is designed for systems utilizing 1/2in BSP threads. It is fully compatible with CorePlus systems and most common industry diamond core brands. Always verify the diameter of your core bit before use.
Care:
Clean the threaded ends after every use to prevent the accumulation of masonry dust. If the threads become difficult to tighten, apply a small amount of anti-seize lubricant. Store in a dry environment to prevent corrosion.
