
Pro Quality Three Section Core Drill Bit

Pro Quality Three Section Core Drill Bit
Instead of replacing the complete core bit when the cutting section is worn, the Three Section Core Drill Bit uses a modular construction that allows the segment section to be replaced while the remaining sections continue to be used. This practical three-piece design helps reduce the cost of replacing drill barrels and also allows an extension to be added when extra drilling length is required. Designed for professional drill rigs, it provides an efficient solution for core drilling concrete, bricks, and blocks.
- Diameter / Size: From 32mm to 400mm
- Segment Type / Shape: Flat Rectangle Segment
- Manufacturing Method: Laser Welded
- Machine Compatibility: Drill Rig
- Bore Size: UNC 1-1/4″-7, 1/2″BSP, M14, M16
Product Overview
The Three Section Core Drill Bit is built around a modular system consisting of three connectable sections. When the diamond segments become worn, the segment section can be replaced with a new one and connected directly to the other two sections. There is no need to braze or laser weld new segments onto the existing barrel, allowing the reusable sections of the core bit to remain in service and helping reduce replacement costs. The modular construction also provides flexibility when drilling depth requirements change. An extension can be added to the existing core bit when a longer drilling setup is needed. Available from 32mm to 400mm, this pro-quality laser welded core bit is designed for drill-rig applications in concrete, bricks, and blocks, with masonry and stone also included among its typical applications.
Specification Data
| Diameter | Valid Length | Seg Size | Connection |
| 32mm | 450mm | 16mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 38mm | 450mm | 16mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 52mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 62mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 77mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 82mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 107mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 127mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 152mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 162mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 172mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 182mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 200mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 225mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 250mm | 450mm | 24mm*4.0mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 300mm | 450mm | 24mm*4.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 350mm | 450mm | 24mm*4.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 400mm | 450mm | 24mm*4.5mm*10mm | UNC 1-1/4, 1/2BSP, M14, M16 |
Key Features
- Three-section modular construction allows the worn cutting section to be replaced separately, extending the usable life of the remaining core bit components.
- Replaceable segment section eliminates the need for brazing or laser welding during cutting-section replacement, simplifying core bit renewal.
- Reusable drill barrel sections help reduce replacement costs because the complete drill barrel does not need to be purchased again when the segments are worn.
- Extension-compatible design makes it easy to increase the overall drilling length when deeper holes are required on the jobsite.
- Laser welded diamond segments provide a secure segment connection for professional core drilling applications.
- 32mm to 400mm size range gives the Three Section Core Drill Bit broad coverage for drill-rig coring requirements.












