Paddock™ Diamond Concrete Core Drill Bits – 35mm to 400mm
Description
Paddock™ diamond core drill bits are professional-grade, wet-use coring bits designed for drilling concrete, reinforced concrete, masonry and similar construction materials. Available from 35mm through to 400mm diameter, the range uses metal-bonded diamond segments and an industry-standard 1-1/4" connection for compatibility with suitable rig-mounted core drilling equipment.

Paddock™ Diamond Concrete Core Drill Bits – 35mm to 400mm
Designed for professional wet coring applications, Paddock™ diamond core bits combine a heavy-duty barrel with metal-bonded diamond cutting segments for efficient drilling through concrete and reinforced concrete.
The range covers diameters from 35mm to 400mm, making it suitable for everything from plumbing and electrical penetrations through to larger drainage, ventilation and service openings.
Diamond Core Drill Bit Features
- Professional-grade diamond core drill bits
- 35mm to 400mm diameter range
- 10mm diamond segment height
- Metal-bonded diamond segments
- Suitable for concrete with or without reinforcing steel
- 450mm overall bit length
- 430mm working length
- Industry-standard 1-1/4" connection
- Designed for wet coring
- Designed for rig-mounted core drilling
- Balanced construction for smooth operation
- Available in a wide range of diameters and segment configurations
Wet Coring Concrete & Reinforced Concrete
These core bits are designed for wet drilling, with water helping cool the diamond segments, flush cutting debris from the kerf and control airborne dust during operation.
The metal-bonded diamond segments are suitable for coring concrete with or without reinforcing steel. Drilling speed and segment life will vary depending on factors including concrete hardness, aggregate, reinforcement, drill speed, feed pressure and water flow.
Industry-Standard 1-1/4" Connection
The 1-1/4" connection is commonly used on professional core drilling equipment, allowing the Paddock™ bits to be paired with compatible Paddock core drill motors as well as other suitable core drilling equipment using the same connection.
Always confirm spindle thread, drill capacity and recommended operating speed before fitting a core bit to another drill.
Diamond Core Drill Bit Specifications
| Specification | Value |
|---|---|
| Brand | Paddock™ Machinery |
| Core Diameter Range | 35mm to 400mm |
| Diamond Segment Height | 10mm |
| Segment Construction | Metal-bonded diamond |
| Overall Bit Length | 450mm |
| Working Length | 430mm |
| Connection | 1-1/4" |
| Operation | Wet coring |
| Drilling Mode | Rig mounted |
| Suitable Materials | Concrete and reinforced concrete; suitable masonry applications |
Available Core Bit Sizes
| Diameter | Segment Size | Number of Segments |
|---|---|---|
| 35mm | 24 x 3.8 x 10mm | 4 |
| 42mm | 24 x 3.8 x 10mm | 4 |
| 51mm | 24 x 3.8 x 10mm | 5 |
| 63mm | 24 x 3.8 x 10mm | 6 |
| 76mm | 24 x 4 x 10mm | 7 |
| 89mm | 24 x 4 x 10mm | 8 |
| 96mm | 24 x 4 x 10mm | 8 |
| 108mm | 24 x 4 x 10mm | 10 |
| 114mm | 24 x 4 x 10mm | 10 |
| 120mm | 24 x 4 x 10mm | 11 |
| 132mm | 24 x 4 x 10mm | 12 |
| 140mm | 24 x 4 x 10mm | 12 |
| 152mm | 24 x 4 x 10mm | 12 |
| 160mm | 24 x 4.2 x 10mm | 12 |
| 168mm | 24 x 4.2 x 10mm | 13 |
| 180mm | 24 x 4.2 x 10mm | 14 |
| 200mm | 24 x 4.5 x 10mm | 16 |
| 220mm | 24 x 4.5 x 10mm | 16 |
| 230mm | 24 x 4.5 x 10mm | 16 |
| 245mm | 24 x 4.5 x 10mm | 17 |
| 254mm | 24 x 4.5 x 10mm | 18 |
| 275mm | 24 x 4.5 x 10mm | 20 |
| 300mm | 24 x 5 x 10mm | 22 |
| 325mm | 24 x 5 x 10mm | 22 |
| 350mm | 24 x 5 x 10mm | 26 |
| 400mm | 24 x 5 x 10mm | 28 |
Core Drilling Applications
- Plumbing and drainage penetrations
- Electrical service penetrations
- Gas and utility pipework
- Water and sewer pipe penetrations
- HVAC ducting and pipework
- Construction and building services
- Concrete sampling and structural testing
- Large-diameter service openings
Compatible Paddock™ Core Drilling Equipment
Paddock™ offers matching core drill motors, drill stands, vacuum pumps and portable water supply equipment for building a complete wet coring system.
PCD2200W Core Drill: suitable for core bits up to 200mm diameter. Pair with the PCDR250A drill stand where appropriate.
PCD3300W Core Drill: suitable for core bits up to 400mm diameter. Pair with the PCDR350A or PCDR440A drill stand depending on the required core diameter and mounting arrangement.
View Paddock™ Core Drill Motors
View Paddock™ Core Drill Stands
Core Drill Vacuum Pump
The Paddock™ core drill vacuum pump can be used with compatible vacuum-base drill stands to secure the drilling rig without conventional anchor fixing where the surface and application permit.
View the Paddock™ Core Drill Vacuum Pump
Portable Water Supply
For wet coring applications where a convenient water source is required, Paddock™ also offers a portable rechargeable water supply trolley suitable for core drilling and dust suppression applications.
View the Portable Water Supply Tank
Note: Select a core bit diameter within the rated capacity of the drill motor and stand being used. Follow the drill manufacturer's recommended speed, water supply and operating procedures for the selected core diameter.