Roof Segment Diamond Core Bit for Reinforced Concrete
Roof Segment Diamond Core Bit for Reinforced Concrete
Heavy steel reinforcement can quickly slow drilling progress and cause conventional core bits to lose efficiency. The Roof Segment Diamond Core Bit is engineered to overcome these demanding conditions with a roof-top segment design that promotes smooth penetration through reinforced concrete while helping reduce clogging during continuous wet drilling. Designed for professional core drilling machines, it is an ideal solution for contractors, distributors, and OEM customers working on structural concrete projects.
- Diameter / Size: 25mm up to 350mm
- Segment Type / Shape: Roof Top Segment
- Manufacturing Method: Laser Welded
- Machine Compatibility: Core Drilling Machine
- Connection: UNC 1-1/4, 1/2″BSP, M14, M16
Product Overview
Reinforced concrete containing heavy steel rebar presents one of the most demanding drilling environments on a construction site. Maintaining drilling speed while preventing segment clogging requires both an optimized segment geometry and a carefully engineered diamond matrix. The Roof Segment Diamond Core Bit features a roof-top segment profile specifically developed to improve cutting performance through concrete and steel reinforcement. Combined with a specially formulated metal bond containing a high cobalt content and a laser welded construction, the bit delivers smooth, consistent coring performance for structural construction, bridge work, commercial buildings, and other heavy-duty reinforced concrete applications.
Specification Data
| Diameter | Valid Length | Seg Size | Connection |
| 25mm | 450mm | 12mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 28mm | 450mm | 12mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 32mm | 450mm | 16mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 36mm | 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 |
| 42mm | 450mm | 16mm*3.5mm*9mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 47mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 52mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 57mm | 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 |
| 67mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 72mm | 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 |
| 92mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 102mm | 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 |
| 112mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 117mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 122mm | 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 |
| 132mm | 450mm | 24mm*3.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
| 142mm | 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 |
| 325mm | 450mm | 24mm*4.5mm*10mm | UNC 1-1/4, 1/2 BSP, M14, M16 |
Key Features
- Roof-top segment geometry improves slurry evacuation and helps reduce clogging when drilling through reinforced concrete.
- High-cobalt metal bond formulation maintains fast and consistent coring performance in hard concrete with heavy steel rebar.
- Laser welded segment attachment provides secure segment retention for demanding wet drilling applications.
- Wide diameter range from 25mm to 350mm supports everything from utility penetrations to large structural openings.
- Designed for professional core drilling machines to deliver stable drilling performance on challenging construction projects.
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