3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

★★★★★ 5.0 93 reviews
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Management number 229173913 Release Date 2026/05/31 List Price $23.20 Model Number 229173913
Category
  1. Tools & Home Improvement
  2. Power & Hand Tools
  3. Power Tool Parts & Accessories
  4. Power Drill Parts & Accessories
  5. Drill Bits
  6. Masonry Core Drill Bits
  • 【High-performance Drilling】Our core bits have 4.5 times the cobalt content of standard drill bits (which contain only 10% cobalt), increasing the hardness of the base material (hardness HRC 70, close to carbide hardness), reducing wear, enhancing heat stability, and thus extending the lifespan of the drill bit to twice that of regular drill bits.
  • 【Industrial-grade Segment】High-speed cutting of reinforced concrete with a diameter ≤25mm; the robust structure and innovative laser welding technology prevent blade breakage.
  • 【Professional Usage Instructions】To maximize service life, continuous water cooling is recommended. The water cooling system prevents overheating, reduces dust and noise, extends tool life, and improves cutting performance.
  • 【Parameter】3 1/2"/89mm, Drilling Depth: 15''/380mm, Thread Type: 1-1/4-7"", Total Length: 17.7''/450mm, Diamond Segment: 24 x 4.8 x 15mm
  • 【Wide Range of Application】This concrete core drill bit is specifically designed for wet drilling in concrete, reinforced concrete , exposed aggregate concrete, old concrete, fireclay brick, masonryIt is especially suitable for installation tasks of air conditioning, piping systems, and range hoods.

ASIN B0GLG5J87Q
Model 839620011
Brand Name DENEWERK
Shank Type Threaded
Unit Count 1.0 Count
Part Number 839620011
Manufacturer DEYINENG COMPANY LIMITED
Material Type Diamond
Tool Flute Type Straight
Cutting Diameter 89 Millimeters
Number of Pieces 1
Included Components 3 1/2 Inch Wet Core Drill Bits
Surface Recommendation Brick, Concrete, Masonry

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

3 1/2" Wet Diamond Core Drill Bits, 15" Drilling Depth, 45% Cobalt HRC 70 Concrete Core Drill Bit, 1-1/4-7" Thread, Laser-Welded Segments, Core Bits for Concrete, Masonry, Brick, Mortar

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