DIAMOND CORE DRILL BITS
Positioned Diamond (PD) Segments | Laser Welded | For Wet and Dry Drilling
Professional product line for contractors
🔧 Technical Specifications
Brand: BMTG
Diameters: 52–252 mm
Working length: 450 mm
Connection: 1 1/4″ UNC
Segment type: Positioned Diamond (PD)
Segment height: 12 mm
Segment joining technology: CNC laser welding
Drilling mode: wet and dry
Designed for: medium- and high-power, stand-mounted core drilling machines anchored to the working surface (walls, ceilings and floors)
🏗 Applications – Intensive Drilling in Reinforced Concrete
BMTG diamond core drill bits with PD segments are designed for professional, percussion-free diamond drilling in:
Designed for drilling openings for:
plumbing installations
electrical installations
ventilation and air-conditioning systems
sanitary and gas installations
heating systems
technical and industrial penetrations
Also suitable for:
creating door and window openings
renovation and demolition work
extracting cores for structural testing and asphalt pavement analysis
💎 Positioned Diamond (PD) Segments – High-Performance Technology
Positioned Diamond technology uses precise, controlled positioning of diamonds within the segment rather than a random diamond distribution.
This provides tangible benefits during drilling:
Higher drilling efficiency – uniform cutting of concrete and reinforcing steel
Faster drilling – more efficient initial penetration and shorter drilling times
More effective cutting through reinforcement – diamonds positioned in areas subjected to the highest loads
Longer segment life – uniform wear helps reduce localised overload
More stable drilling – reduced vibration and lower load on the drilling machine
Improved cooling and debris removal – optimised flow of water and drilling slurry
Lower operating costs – longer service life and less downtime
Consistent drilling performance – stable performance from the first hole to the last
Reduced risk of overheating – more even distribution of cutting forces
This solution is designed for contractors performing intensive reinforced-concrete drilling who require maximum performance.
⚙ Laser Welding – Maximum Joint Strength
PD segments are permanently joined to the steel core barrel using fiber laser welding on modern CNC machinery.
This technology provides:
wet and dry drilling capability
highly precise and durable segment attachment
excellent mechanical and thermal strength of the segment-to-barrel joint
safe operation under heavy loads
Every joint between the diamond segment and the core barrel undergoes a strength inspection using dynamometric testing. The results obtained typically exceed standard market requirements.
🎯 Precision and Safety
Minimal axial and radial runout
High manufacturing accuracy of the core barrel
Uniform, cylindrical holes corresponding to the nominal diameter
No structural microcracking due to percussion-free drilling technology
Special segment geometry for easier drilling initiation
♻ Cost-Effective Operation
Suitable for multiple retipping cycles
Construction designed for intensive professional use
Durable marking (laser / mechanical / graphic)
Robust protective packaging
🔩 Compatibility
1 1/4″ UNC connection – a professional industry standard.
Compatible with core drilling machines from manufacturers including: Tyrolit, Weka, Pentruder, Cedima, Dr Bender, Dr. Schulze, Cardi, Bosch, Baier, Ridgid, Norton, Rothenberger, DeWalt, Dedra, Rems and Eibenstock, as well as other machines using the same connection system.
With a suitable adapter, the core drill bits are also compatible with Hilti drilling machines.
🇵🇱 Made in Poland
BMTG diamond core drill bits are manufactured in Poland in accordance with high quality standards and strict production process controls.
Images are for illustrative purposes only.