Diamond Concrete Core Drill Bit is used for drilling holes. Our diamond coring bit features chip removal holes, highly regular sawteeth, and a concentric axes design. The innovative design allows it high drilling performance while keeping a long lifetime. The drill is an integrated drill, the whole drill has no moving parts, the structure is relatively simple, and it has high strength, high wear resistance and impact resistance. Field use has proved that when drilling in soft-to-medium-hard formations, the diamond bit has the advantages of high speed, long footage, long life, stable operation, few downhole accidents, and good wellbore quality.Our concrete core drill is designed for drilling concrete, red brick, marble, and other materials on conditions, such as installing air conditioners, pipes, stair railings, highways, airports, etc.
The use of diamond concrete core drill bits also promotes a safer work environment. As these drill bits cut through materials, they produce less dust, reducing the risk of inhaling hazardous particles. They also generate less heat, which makes them safer to handle, reducing the risk of burn injuries.
Diamond concrete core drill bits are an essential tool for anyone involved in construction, electrical, or plumbing work. They offer superior cutting ability, precision, and safety, making them a valuable addition to any toolbox. With their many benefits, it's easy to see why these drill bits have become a go-totool for many professionals.
|
Diameter (mm) |
L*T*H (mm) |
Segment No. |
working length |
thread |
|
|
Ф14 |
3.0*10(crown segment) |
1 |
450mm |
1-1/4UNC |
|
|
Ф16 |
3.0*10(crown segment) |
1 |
|||
|
Ф18 |
3.0*10(crown segment) |
1 |
|||
|
Ф20 |
3.0*10(crown segment) |
1 |
|||
|
Ф22 |
3.0*10(crown segment) |
1 |
|||
|
Ф24 |
3.0*10(crown segment) |
1 |
|||
| Ф25 | 15*3.0*10 | 3 | |||
| Ф28 | 15*3*10 | 3 | |||
|
Ф30 |
15*3*10 |
3 |
|||
| Ф32 |
15*3.2*10 |
4 |
|||
|
Ф36 |
15*3.2*10 |
4 |
|||
|
Ф38 |
15*3.2*10 |
5 |
|||
|
Ф40 |
15*3.2*10 |
5 |
|||
|
Ф42 |
15*3.2*10 |
5 |
|||
|
Ф47 |
24*3.5*10 |
4 |
|||
|
Ф51 |
24*3.5*10 |
5 |
|||
|
Ф63 |
24*3.5*10 |
6 |
|||
|
Ф68 |
24*3.5*10 |
6 |
|||
|
Ф78 |
24*3.5*10 |
7 |
|||
|
Ф82 |
24*3.5*10 |
7 |
|||
|
Ф92 |
24*3.5*10 |
8 |
|||
|
Ф102 |
24*3.5*10 |
9 |
|||
|
Ф108 |
24*3.5*10 |
9 |
|||
|
Ф112 |
24*3.5*10 |
9 |
|||
| Ф122 | 24*4*10 | 10 | |||
| Ф127 | 24*4*10 | 11 | |||
| Ф132 | 24*4*10 | 11 | |||
| Ф152 |
24*4.5*10 |
12 |
|||
|
Ф162 |
24*4.5*10 |
12 |
|||
|
Ф172 |
24*4.5*10 |
12 |
|||
|
Ф182 |
24*4.5*10 |
13 |
|||
|
Ф202 |
24*4.5*10 |
15 |
|||
|
Ф212 |
24*4.5*10 |
16 |
|||
|
Ф225 |
24*4.5*10 |
16 |
|||
|
Ф250 |
24*4.5*10 |
16 |
|||
| Ф300 | 24*5*10 | 17 | |||
| Ф350 | 24*5*10 | 20 | |||
Note
The above specification is only for Reference, other or special specifications can be ordered by the customer.
Diamond Concrete Core Drill Bits – Precision Drilling Tools for Hard Materials
Diamond concrete core drill bits are high‑performance drilling tools specially engineered to penetrate reinforced concrete, masonry, stone, brick, and other abrasive building materials. Unlike standard twist or carbide bits, diamond core bits use industrial diamonds embedded in a robust metal matrix to grind material away with precision, delivering smooth, round holes with minimal cracking and reduced chipping.
These bits are essential for construction, renovation, utility installation, HVAC/piping work, anchor placement, and structural drilling, providing faster drilling speeds, longer tool life, and cleaner hole edges compared with conventional drilling solutions.
What Makes Diamond Core Drill Bits Different
Diamond core bits differ from traditional drilling tools in several key ways:
Abrasive Cutting vs. Impact Drilling: Diamond bits grind material rather than hammer or chip it, preserving material integrity.
Hollow Core Design: Only the edge of the hole is cut, leaving a core that can be removed easily.
High‑Precision Diameters: Available in exact sizes, producing consistent hole dimensions for piping, conduits, anchors, or structural penetrations.
Extended Lifespan: Industrial diamonds maintain cutting performance in hard and abrasive substrates far longer than carbide or steel alternatives.
Core Benefits for Contractors & Installers
✔ High Material Removal Efficiency
Diamond abrasives remove concrete and steel reinforcement faster and with less effort than standard bits, drastically reducing drilling time on tough jobs.
✔ Long Tool Service Life
Premium diamond crystals and optimized bond formulas resist wear, extending the usable life of the core drill bit even under heavy drilling loads.
✔ Clean & Uniform Holes
The hollow core design produces smooth, round holes with minimal finishing required, improving installation fit and reducing rework.
✔ Versatile Application
Suitable for handheld drills, bench rigs, and floor‑mounted core drilling systems, making these bits ideal for both site and workshop tasks.
✔ Reduced Vibration & Structural Safety
The grinding action minimizes vibration, lowering the risk of hairline cracks and structural damage - especially important in retrofit or renovation environments.
Typical Applications of Diamond Concrete Core Drill Bits
Diamond core drill bits are the tool of choice for a wide range of drilling needs, including:
Utility Penetrations: Creating holes for electrical conduits, plumbing, and HVAC ducting in slabs and walls.
Anchor and Bolt Preparation: Clean holes for epoxy anchors, rebar dowels, and mechanical fasteners.
Structural Openings: Cutting openings in reinforced concrete for doors, windows, piping, or cable trays.
Renovation & Retrofit Projects: Drilling through existing structures with minimal disturbance.
Basement & Foundation Work: Penetrating thick slab, footing, or wall sections for drains or utilities.
Choosing the Right Diamond Core Drill Bit
When selecting a diamond core drill bit, consider the following factors:
📌 Material Hardness
Harder concrete with dense aggregates and heavy rebar will benefit from premium diamond segments with softer bond formulas that expose diamonds more aggressively.
📌 Hole Diameter & Depth
Choose a bit with a diameter and effective drilling depth suited to your task - from small openings (e.g., 16–50 mm) to large penetrations (100 mm+). Deeper drilling may require rig‑mounted systems for stability.
📌 Wet vs. Dry Drilling
Wet drilling is recommended for long bit life and dust control, especially on large or repeated holes.
Dry drilling is available where water is prohibited but can increase heat and wear - choose bits designed for dry conditions if needed.
📌 Drill Compatibility
Ensure the bit's shank type, thread size, and arbor configuration match your drilling machine - handheld, rig, or floor stand.
Diamond Core Bit Structure & Design
A typical diamond concrete core drill bit consists of:
Steel Core Body: Provides strength and stability.
Diamond Segment Rim: Industrial diamonds bonded with metal to grind material.
Water Ports (on wet bits): Channels water to the cutting surface for cooling and debris flushing.
Thread/Shank Connection: Ensures secure attachment to the drill machine.
Advanced designs may feature slotted segment profiles for improved cooling and faster debris evacuation, enhancing performance on deep or dense holes.
Wet vs. Dry Drilling with Diamond Core Bits
Wet Drilling Benefits:
Reduces heat buildup
Controls silica dust
Extends bit life
Improves cut quality
Dry Drilling Considerations:
Requires dust extraction systems
Can be used where water is unavailable
Generally suited to smaller diameters or short holes
Selecting the correct drilling mode based on site conditions and material type helps maximize performance, safety, and tool durability.
Performance Tips for Maximum Efficiency
✔ Begin drilling at low speed and gradually increase as the bit bites in.
✔ Maintain consistent feed pressure to avoid glazing the diamonds.
✔ Use water cooling wherever possible to reduce friction and dust.
✔ Periodically clear debris from the hole to maintain cutting efficiency.
✔ Match the bit diameter to the drill's power output for stable operation.
Packing, Storage, Handling and Transportation
Diamond Concrete Core Drill Bit if small quantity pack in paper box, if large quantity, they are packed in polywood case before delivery.
After sales service team
Technical Team
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