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⭐FEATURES⭐
- Thickened bold
* High-quality 45 steel forging, durable, and no tooth loss orcrooked teeth. Concentric drill

- A full-diamond-lengthened water drill bit is sharp and tough
* Drill powder diamond content increased by 30%. The drill bit contains high-quality diamonds, allowing you to drill holes with
ease.

- Reinforced concrete still drilling
* Flat teeth,turbine teeth, and great wall teeth are drilled sharply.

- Used for construction install pipe, air conditioning, electric, heating, gas pipeline drill wall, And use highway, airpor
runway, bridge and tunnel engineering drilling, also can drilling Stone or ceramic non-metallic materials.

⭐SELECTIONS⭐
1. DCB76470
- Diameter : ø76 x 470MM(3")

2. DCB108470
- Diameter : ø108 x 470MM (4")

3. DCB127470
- Diameter : ø 127 x 470MM (5")

4. DCB162470
- Diameter : ø 162 x 470MM (6'')