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Milwaukee 12 in Diamond Ultra Wet Core Bit

  • $409.00
  • Brands Milwaukee
  • Product Code: 48-17-5120
  • Availability: In Stock

Milwaukee 12 in. Diamond Ultra Wet Core Bit The Milwaukee 12 in. Diamond Ultra Wet Core Bit is a professional-grade diamond core drilling accessory designed for wet drilling applications in concrete and other compatible masonry materials. Its 12-inch diameter is suited to large-diameter drilling where contractors need to create openings for pipes, conduit, sleeves, HVAC systems, and other buildin..

High Performance Milwaukee Diamond Wet Core Bit for Concrete Drilling


Milwaukee 12 in. Diamond Ultra Wet Core Bit


The Milwaukee 12 in. Diamond Ultra Wet Core Bit is a professional-grade diamond core drilling accessory designed for wet drilling applications in concrete and other compatible masonry materials. Its 12-inch diameter is suited to large-diameter drilling where contractors need to create openings for pipes, conduit, sleeves, HVAC systems, and other building services.


The diamond cutting design is intended to efficiently cut hard materials, while the wet-drilling method helps manage heat and drilling debris during operation. It is a practical choice for contractors and tradespeople handling demanding construction, renovation, plumbing, electrical, and mechanical work.


Key Features


  • 12-inch diameter for large-diameter core drilling applications.
  • Diamond cutting segments designed for hard construction materials.
  • Ultra Wet design intended for water-cooled drilling.
  • Water helps dissipate heat generated during cutting.
  • Suitable for concrete and compatible masonry materials.
  • Designed for professional construction and installation work.
  • Useful for creating openings for pipes, conduits, sleeves, and other services.
  • Suitable for demanding commercial, industrial, and utility applications.
  • Designed for use with compatible core-drilling equipment.


Product Specifications


SpecificationDetails
BrandMilwaukee
Product TypeDiamond wet core bit
Diameter12 in.
Drilling MethodWet core drilling
Cutting TechnologyDiamond
Primary MaterialsConcrete and compatible masonry
ApplicationLarge-diameter core drilling
Typical UsesPlumbing, electrical, HVAC, mechanical, construction, and utility work
Tool CompatibilityCompatible core drilling equipment
Intended UsersProfessional contractors and tradespeople


Compatibility note: A 12-inch diameter does not by itself determine compatibility with a particular core drill. Confirm the bit connection, machine capacity, operating requirements, and manufacturer's recommendations before use.


12-Inch Large-Diameter Drilling


The 12-inch diameter provides the capacity needed for substantial openings through concrete and other approved masonry materials. Large core openings are commonly required when routing building services through floors, walls, foundations, and other structural areas.


Typical applications include openings for:


  • Large plumbing pipes
  • Pipe sleeves
  • HVAC components
  • Electrical conduits
  • Utility lines
  • Mechanical systems
  • Building-service penetrations


Actual drilling performance will depend on the material, aggregate composition, reinforcement, equipment, water flow, and operating conditions.


Diamond Cutting Technology


Diamond segments are engineered to cut abrasive construction materials by grinding through the material rather than relying on conventional drilling flutes. This makes diamond core bits particularly suitable for producing cylindrical, large-diameter openings.


Performance can vary depending on concrete hardness, aggregate type, embedded reinforcement, drilling speed, water supply, and machine condition.


Ultra Wet Design


The Ultra Wet configuration is intended for operation with water. Wet drilling helps cool the cutting segments and flush drilling debris from the cutting area.


Maintaining an appropriate water supply can help control heat buildup and support consistent cutting performance during extended drilling operations.


Professional Applications


The Milwaukee 12 in. Diamond Ultra Wet Core Bit is suitable for compatible applications including:


  • Concrete construction
  • Commercial building projects
  • Plumbing installation
  • Electrical installation
  • HVAC work
  • Mechanical contracting
  • Utility construction
  • Structural penetrations
  • Renovation projects
  • Building-service installation


Recommended Operating Procedure


For best results, use the core bit with properly matched drilling equipment and follow the manufacturer's operating instructions.


  1. Confirm that the core drill is rated for a 12-inch core.
  2. Verify the bit connection is compatible with the drilling machine.
  3. Inspect the bit and diamond segments for damage or excessive wear.
  4. Identify the drilling location and verify the area is free from hidden utilities and other hazards.
  5. Secure the core-drilling equipment appropriately.
  6. Establish a suitable water supply for wet drilling.
  7. Start the drilling operation according to the machine manufacturer's instructions.
  8. Maintain appropriate water flow during cutting.
  9. Apply steady, controlled pressure without forcing the bit.
  10. Monitor drilling performance and stop if abnormal vibration or other problems occur.
  11. Clean the opening and equipment after completing the operation.


Safety and Maintenance


Large-diameter core drilling requires careful preparation and appropriate protective equipment.


  • Wear suitable eye and hearing protection.
  • Use appropriate gloves and job-site protective equipment.
  • Follow the core drill manufacturer's safety requirements.
  • Inspect the core bit before each use.
  • Never use a damaged or severely worn bit.
  • Check the drilling area for concealed electrical, plumbing, or structural hazards.
  • Use appropriate water-management procedures around electrical equipment.
  • Keep unauthorized personnel away from the drilling area.
  • Ensure the drilling equipment is securely positioned.
  • Never exceed the machine or accessory's rated capacity.
  • Do not force the bit through the material.
  • Clean the bit after use and store it properly.


Why Choose the Milwaukee 12 in. Diamond Ultra Wet Core Bit?


The Milwaukee 12 in. Diamond Ultra Wet Core Bit is designed for professionals who need to produce large, precise openings in concrete and compatible masonry materials. Its diamond cutting segments provide a purpose-built solution for core drilling, while the wet-drilling configuration helps manage heat and remove drilling debris.


With its 12-inch diameter, the bit is particularly useful for contractors handling large plumbing, electrical, HVAC, mechanical, and utility penetrations in demanding construction environments.


Important: This product is a diamond core bit, not a complete core drilling machine. Always verify the connection type, machine compatibility, material suitability, operating specifications, water requirements, and manufacturer's recommendations before use.

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