CBU
CBU

COOLMAN CBU Series Diamond Core Bit

One-Piece Laser-Welded Core Bit for Reliable Everyday Concrete Coring

Specification
Bit Diameter
112mm, 127mm, 162mm, 182mm, 200mm, 225mm, 250mm, 300mm, 350mm, 400mm, 52mm, 57mm, 62mm, 67mm, 77mm, 82mm, 92mm
Bit Composition
China Synthetic Diamonds, General Steel Core, High-Performance Bond Matrix
Welding Technology
Laser Welded
Overall Length
450mm
Max Working Length
400mm
Thread Type
A-ROD
Drilling Method
Wet Use Only
Equipment
China Core Drill Machines, Professional Core Drill Machines, Rig-Mounted Core Drill Systems, SHIBUYA Core Drill Machines
Recommended RPM
127mm – 162mm : 600 – 900 RPM, 182mm – 202mm : 400 – 700 RPM, 225mm – 250mm : 300 – 500 RPM, 300mm – 350mm : 200 – 350 RPM, 400mm : 150 – 250 RPM, 52mm – 76mm : 1200 – 1800 RPM, 82mm – 112mm : 800 – 1200 RPM
Safety Warning
⚠ Use adequate water supply during drilling.
⚠ Wear proper PPE at all times.
⚠ Do not exceed the recommended RPM.
⚠ Ensure the core bit is securely mounted.
⚠ Inspect the core bit before use.
⚠ Keep hands clear of rotating parts.
⚠ Use only with suitable core drilling machines.

The COOLMAN CBU Series Diamond Core Bit is a one-piece, laser-welded diamond core bit designed for standard concrete coring applications. Engineered to deliver reliable drilling performance, stable cutting speed, and long service life, the CBU Series offers an excellent balance between performance and affordability. It is an ideal choice for contractors and professional users seeking a dependable core bit for everyday drilling work in concrete, reinforced concrete, and masonry materials.

Features

  • One-Piece Core Bit Construction
  • Laser-Welded Segment Technology
  • Stable & Reliable Drilling Performance
  • Fast and Smooth Coring Action
  • Durable Steel Tube Design
  • Long Service Life
  • Suitable for Wet Drilling
  • Excellent Value for Money
  • Professional Contractor Grade Quality
  • Wide Range of Available Sizes

Applications

  • Concrete
  • Reinforced Concrete
  • Masonry Blocks
  • Brick Walls
  • Concrete Slabs
  • Concrete Beams
  • Floor Openings
  • Pipe Installation
  • Cable Installation
  • General Construction Coring Work
SKU: CBU CORE BIT Categories: , ,