NEO TOOLS 57-864 Coroa de perfuração diamantada para máquinas de perfuração, 122 mm de diâmetro, 470 mm de comprimento de trabalho, rosca UNC de 1 1/4 polegadas, 11 segmentos, perfuração a húmido, série GRAPHITE PRO

On a busy construction site, a professional contractor mounts this diamond core drill bit onto a core drilling machine to create precise 122 mm openings in reinforced concrete walls for plumbing and electrical conduits. The NEO TOOLS 57-864 is engineered for demanding wet drilling applications, delivering clean, accurate holes with minimal vibration and long service life.

Key specifications

• Drill bit type: Diamond core drill bit
• Drilling diameter: 122 mm
• Working length: 470 mm
• Mounting thread: 1 1/4" UNC
• Number of diamond segments: 11
• Segment height: 10 mm
• Segment bonding: Medium-hard
• Segment attachment: Laser welded
• Body material: High-grade steel
• Application materials: Concrete, reinforced concrete, masonry, brick, stone
• Drilling method: Wet drilling
• Core removal slot: Yes
• Product series: GRAPHITE PRO
• Compatibility: For drill rigs with 1 1/4" UNC spindle

Why choose it

Laser-welded diamond segments ensure exceptional durability and cutting speed, even in heavily reinforced concrete. The medium-hard bonding is optimized for professional use, reducing segment wear and maintaining consistent performance. The core removal slot simplifies slug extraction, saving time on the job.

Ideal use cases

• Creating openings for pipes, cables, and ventilation ducts in concrete and masonry
• Professional core drilling in construction and renovation projects
• Wet drilling applications requiring high precision and clean cuts
• Use with compatible core drilling machines featuring a 1 1/4" UNC spindle

Good to know

Always use water for cooling and dust suppression during wet drilling. Ensure the drill rig is stable and the bit is properly mounted. Regularly check segment wear and replace the bit when segments are worn down to maintain performance and safety.