Dart Red Ten DCD Spiro Dry Diamond Core Masonry Drill Bit - 22mm x 300mm
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Product Information
Full details
The Dart Red Ten DCD Spiro 22mm Diamond Core Bit is a professional-grade tool designed for contractors and serious DIYers who need to drill clean, precise holes in masonry, brick, granite, and reinforced concrete. Its primary benefit is the specialized spiral barrel design that facilitates rapid dust removal and heat management, significantly extending the life of the bit. While highly effective, users should note that it is intended for dry drilling and requires consistent pressure to maintain performance without overheating the segments.
All features
| Model Part Number | Db00740 |
|---|---|
| Brand | Dart Red Ten |
Extended Product Information
FAQs
Can I use this bit in a rotary hammer?
Yes, but it must be used in rotary-only mode. Hammer action can damage the diamond segments.
Does this bit require water for cooling?
No, this is a dry diamond core bit designed for use without water.
What is the maximum depth I can drill?
The bit is 300mm in length, which defines your maximum effective drilling depth.
Will this cut through steel rebar?
It is suitable for light to medium steel reinforcement found in concrete, but it is not intended for heavy structural steel.
Is the 10mm hex shaft compatible with standard drills?
Yes, it is compatible with standard 13mm drill chucks found on most consumer and professional drills.
Troubleshooting
The bit is cutting slowly or glazing over
Drill into an abrasive material like a soft brick or sandstone to expose new diamond particles on the segments.
Excessive vibration during drilling
Ensure the drill chuck is fully tightened and the bit is running in pure rotary mode (no hammer action).
Debris buildup inside the barrel
Withdraw the bit periodically during deep drilling to allow the spiral design to eject accumulated dust.
Pros and Cons
Pros
- High efficiency in hard materials like granite and hard concrete
- Excellent heat management through spiral design and side vents
- Durable construction with 2.0mm wall thickness prevents bending
- Compatible with standard 13mm drill chucks
Cons
- Requires proper drilling technique to avoid excessive heat buildup
- Not suitable for heavy-duty structural steel reinforcement
- Standard 10mm hex shaft may limit torque in high-power industrial rotary tools
Setup, Compatibility & Care
To set up, insert the 10mm hex shaft firmly into a 13mm drill chuck, ensuring the chuck is tightened evenly to prevent wobble. This bit is designed for dry use; do not use water as a coolant, as this can interfere with the dust-clearing spiral mechanism. Compatibility extends to standard drills and rotary hammers (in rotary-only mode). To care for your bit, avoid lateral pressure or 'wiggling' the drill during use, as this can distort the steel body. After heavy use, inspect the segments for signs of dullness. If the bit begins to cut slowly, you may need to 'sharpen' the diamonds by drilling a few holes into an abrasive material like a sandstone block.