A professional 3-piece dry diamond core drill set designed for drilling clean holes in brick and blockwork, ideal for plumbers, electricians and construction trades.
• Turbo segment design: Faster drilling and cleaner cuts
• Helix barrel: Efficient dust clearance and core removal
• Core sizes included: 38mm 52mm 117mm diameters
• Drilling depth: 150mm core length
• Connection type: 1/2" BSP female thread
• Compliance standard: OSA certified and BS EN 13236
OTEC Premium 3-Piece Dry Diamond Core Drill Set (38/52/117mm) with Accessories & Case
A professional 3-piece dry diamond core drill set designed for drilling clean holes in brick and blockwork, ideal for plumbers, electricians and construction trades.
• Turbo segment design: Faster drilling and cleaner cuts
• Helix barrel: Efficient dust clearance and core removal
• Core sizes included: 38mm 52mm 117mm diameters
• Drilling depth: 150mm core length
• Connection type: 1/2" BSP female thread
• Compliance standard: OSA certified and BS EN 13236
- Buy 5 for £81.60 £68.00 each and save 6%
- Buy 10 for £75.47 £62.89 each and save 13%
| BULK DISCOUNT | 5 | 10 |
|---|---|---|
| Price | £68.00 £81.60 | £62.89 £75.47 |
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Order to earn 72 FASTPoints
Log in to access trade discountsOTEC Premium 3-Piece Dry Diamond Core Drill Set (38/52/117mm) with Accessories & Case
This premium dry diamond core drill set is designed for trade professionals needing reliable, clean drilling in brick and blockwork. Covering three of the most commonly used sizes, it provides a complete solution for pipe, conduit, and service installations.
With turbo segments and a helix barrel design, each core drill delivers efficient cutting performance with improved dust clearance and reduced clogging during use.
Why Choose the OTEC 3-piece dry diamond core drill set
• Three core sizes included: Covers common plumbing and electrical applications without needing multiple purchases
• Turbo diamond segments: Improves drilling speed and produces cleaner hole edges in masonry
• Helix barrel design: Actively clears dust to prevent clogging and maintain cutting efficiency
• Complete accessory kit: Includes adaptors and pilot tools for immediate use on site
• Dry cutting operation: No water required, suitable for indoor and controlled environments
• Trade-ready compatibility: 1/2" BSP connection works with standard drilling equipment
What’s in the Box?
• 1 x 38mm dry diamond core drill
• 1 x 52mm dry diamond core drill
• 1 x 117mm dry diamond core drill
• 1 x 250mm 1/2" BSP solid extension
• 1 x SDS Plus adaptor
• 1 x HEX adaptor
• 1 x 13mm A taper drill
• 1 x Drill guide
• 1 x Drift key
• 1 x Carry case
Specifications
| Specification | Detail |
|---|---|
| Product Name | OTEC Premium 3-Piece Dry Diamond Core Drill Set (38/52/117mm) with Accessories & Case |
| Product Code | DA120001 |
| Core Sizes | 38 mm 52 mm 117 mm |
| Core Length | 150 mm |
| Connection Type | 1/2" BSP female |
| Segment Type | Turbo diamond segment |
| Barrel Design | Helix slotted barrel |
| Drilling Type | Dry drilling |
| Suitable Materials | Brick and blockwork |
| Extension Length | 250 mm |
| Adaptors Included | SDS Plus adaptor HEX adaptor |
| Pilot Drill | 13 mm A taper |
| Accessories Included | Guide drift key extension adaptors |
| Storage | Carry case included |
| Compliance | OSA certified |
| Standard | BS EN 13236 |
Compatibility
| Compatible With | Status |
|---|---|
| Handheld core drills | ✓ Compatible |
| SDS drills with adaptor | ✓ Compatible |
| Brick | ✓ Compatible |
| Blockwork | ✓ Compatible |
| Reinforced concrete | ✗ Not recommended |
| Wet drilling systems | ✗ Not recommended |
Who Is This For?
This core drill set is designed for plumbers, electricians, and general construction professionals carrying out dry drilling in masonry. It is suited to trades needing multiple core sizes for service installation work on site.
Typical Applications
• Drilling pipe entry holes through brick walls
• Installing electrical conduit and trunking
• Creating openings for ventilation ducts
• Service penetrations in blockwork structures
• General drilling for plumbing and electrical installations
• Maintenance and retrofit projects
How to Use
- Select the correct core size for the application
- Attach the core to the drill using the appropriate adaptor
- Insert the pilot drill and guide if required
- Mark the drilling position clearly
- Begin drilling with steady pressure and controlled speed
- Withdraw periodically to clear dust
- Continue until the required depth is reached
Safety and Maintenance
Safety during use:
Wear PPE including dust mask eye protection and gloves
Use dust extraction where possible
Do not force the drill during operation
Ensure all components are securely fitted before use
After use and maintenance:
Clean all cores and accessories after use
Remove dust and debris from barrels and segments
Inspect cutting edges for wear or damage
Store components securely in the case to prevent damage
Frequently Asked Questions
Q: What materials can this core drill set be used on?
A: It is designed for dry drilling in brick and blockwork, providing clean and efficient cutting without the need for water.
Q: What sizes are included in the set?
A: The set includes 38mm, 52mm, and 117mm core drills, covering common plumbing and electrical applications.
Q: Is this suitable for concrete drilling?
A: It is not recommended for reinforced concrete, as it is specifically designed for masonry materials.
Q: What is the benefit of turbo segments?
A: Turbo segments improve cutting speed and efficiency while maintaining a cleaner hole finish.
Q: Why is the helix barrel important?
A: The helix design helps remove dust during drilling, preventing clogging and improving performance.
Q: What does 1/2" BSP compatibility mean?
A: It ensures the cores fit standard dry drilling equipment commonly used across UK construction sites.
Q: Does this require water for drilling?
A: No, it is designed for dry use, making it suitable for indoor and controlled environments.
Q: What does BS EN 13236 compliance mean?
A: It confirms the product meets European safety and performance standards for diamond tools, ensuring reliability on site.
Q: Is this a complete kit ready to use?
A: Yes, it includes cores, adaptors, pilot drill, and accessories needed for immediate use.
Q: Why buy dry core drill sets from CMT Group?
A: CMT Group supplies trade-grade drilling tools with consistent stock availability, expert support, and fast UK delivery including same and next working day options on most products.
