Laser Welded Wet Diamond Core Drill Bit with Crown Segment
The Laser-Welded Wet Diamond Core Drill Bit with Crown Segment is designed for small-diameter holes in concrete and reinforced concrete. A continuous diamond crown is laser welded to the steel barrel, providing uniform contact around the drilling edge.
Water cooling controls segment temperature, carries drilling slurry out of the hole, and keeps fresh diamond cutting points exposed. The slim crown design is suitable for deep, narrow holes where drilling stability and dimensional control are important.
- Continuous crown segment: The ring-style cutting edge provides even contact with the material during drilling.
- Laser-welded joint: The diamond crown is securely attached to the steel barrel for demanding wet drilling.
- Wet drilling design: Water cooling helps manage heat, remove slurry, and reduce airborne dust.
- Deep-hole options: Effective lengths of 400 mm, 450 mm, and 500 mm are available.
- Standard 1/2″ BSP connection: Suitable for compatible handheld and rig-mounted wet core drilling machines.
Description
Connection: 1/2″ BSP
| Diameter (mm) | Effective Length (mm) | Barrel Wall Thickness (mm) | Segment Height (mm) | Segment Thickness (mm) |
|---|---|---|---|---|
| 18 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 20 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 22 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 24 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 25 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 26 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 28 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 30 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 32 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 35 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 40 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
| 42 | 400 / 450 / 500 | 1.5 | 12 | 2.5 |
Applications
The wet crown core bit is suitable for drilling small, deep holes in:
- Cured concrete
- Reinforced concrete
- Concrete walls, floors, and structural elements
- Brick and construction masonry
- Concrete containing hard aggregate
Typical applications include anchor holes, pipe and cable passages, installation holes, renovation work, and other professional construction drilling.
For reinforced concrete, the bond formulation should be selected according to the aggregate hardness, concrete strength, and expected rebar content. The bit is designed for wet drilling and should not be operated without an adequate water supply.
OEM
Hanze provides OEM and private-label production for diamond tool importers, distributors, contractors, and drilling equipment suppliers.
Available customization options include:
- Diamond bond for different concrete and aggregate conditions
- Outside diameter and effective drilling length
- Segment height and thickness
- Steel barrel thickness
- Connection thread
- Barrel color and surface finish
- Laser-engraved logo and product markings
- Private-label packaging and barcode labels
Custom diameters or connections outside the standard table can be reviewed according to the required quantity and application.
