KFFKFF 3-1/2 inch Diamond Core Drill Bit, 14 inch Depth, 1-1/4 in-7 Thread, Durable Wet Core Bit for Concrete, Brick, and Masonry Applications

★★★★★ 4.7 79 reviews

US$10.80
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Management number 230772419 Release Date 2026/06/18 List Price US$10.80 Model Number 230772419
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<div> <h3> <strong>Product Description</strong><br> </h3> <strong> <div>3.5-Inch Wet Diamond Core Drilling Bit</div> </strong> <div> <div>This durable core drill bit is designed with high-frequency, precision welding to ensure efficient and smooth drilling. Featuring a 1-1/4 in-7 universal thread, it is suitable for use on reinforced concrete, red brick, concrete, and foam blocks.</div> </div> </div> <div> <div> <strong> <div>Sturdy and Reliable Construction Material</div> </strong> <div> <div>Crafted from high-quality carbon steel and equipped with diamond-grit teeth, this core drill bit ensures precision and durability when cutting or grinding tough materials. It offers reliable wear resistance and extended service life.</div> </div> <strong> <div>Moisture-Assisted Drilling</div> </strong> <div> <div>This diamond wet core drill bit is designed for efficient cutting in wet conditions, ensuring proper cooling and lubrication to enhance durability, prolong tool life, and reduce dust for a cleaner working environment.</div> </div> <strong> <div>Precisely Welded for Accuracy</div> </strong> <div> <div>Designed with precise welding techniques, this concrete core drill bit ensures exceptional resistance to wear and stability under high temperatures. Its durable diamond teeth remain firmly in place during demanding drilling tasks, reducing the risk of detachment and ensuring extended usability.</div> </div> <strong> <div>Simple to Use</div> </strong> <div> <div>These concrete core drill bits are designed for easy installation and operation, making them suitable even for those new to drilling. For the best results, ensure the bit remains straight and properly aligned with the wall of the hole during use.</div> </div> <strong> <div>Suitable for Various Uses</div> </strong> <div> <div>This core drill bit delivers accurate and clean cuts through challenging materials such as red bricks, concrete, and foam blocks. Perfect for various drilling tasks in construction and remodeling projects.</div> </div> <strong> <div>Versatile Compatibility</div> </strong> <div> <div>This concrete core drill bit is designed to work with a wide range of handheld drills and stand-mounted drilling machines. It can be effortlessly attached to your current equipment for smooth operation.</div> </div> </div> </div> <div> <h3> <strong>Specifications</strong><br> </h3> <div>Item Model Number: 89*350</div> <div>Diameter: 3-1/2 in/89 mm</div> <div>Inner Thread: 1-1/4 in-7</div> <div>Max Drilling Depth: 14 in/356 mm</div> <div>Welding Method: Laser Welding</div> <div>Wet/Dry Application: Wet</div> <div>Compatible Machines: Hand Drills, Stand Drills</div> <div>Compatible Cutting Materials: Reinforced Concrete, Red Bricks, Concrete, Foam Bricks</div> <div>Net Weight (Including Accessories): 4.5 lb/2.04 kg</div> <div>Product Dimensions: 16.22 x 3.50 x 3.50 in/412 x 89 x 89 mm</div> </div> <div> <h3> <strong>Package Content</strong><br> </h3> <div>1 x Core Drill Bit</div> <div>1 x User Manual</div> <div>1 x Label</div> </div>

  • Wide Compatibility: This 3-1/2 inch wet core drill bit is designed with a 1-1/4 inch-7 universal thread, enabling seamless and efficient connection to most standard handheld or stand-mounted drills, ensuring adaptability and ease of use.
  • Wet Core Drill Bit: Designed for wet drilling applications, this diamond core bit minimizes heat generation during use, ensuring consistent performance and durability. It also reduces friction and enhances drilling efficiency for smoother operations.
  • Robust and Reliable: Made from premium carbon steel and featuring precise welding, this concrete core drill bit offers exceptional durability with a hardness rating of 95HRB. Its design minimizes heat accumulation during high-speed drilling, preventing blade separation and extending its lifespan.
  • Efficient Drilling Capability: These concrete core bits are designed with precision-engineered teeth to deliver clean and smooth edges, ensuring faster and more accurate cutting. The centered tooth alignment maintains stability and minimizes wobbling or misalignment during high-speed operations.
  • Versatile Usage: Perfect for drilling tasks involving reinforced concrete, red brick, standard concrete, and foam brick. This core drill bit is widely utilized in air conditioning setups, plumbing projects, stair rail installations, roadworks, airport construction, and other building applications.
Cutting edge material Diamond
Compatibility Hand Drills, Stand Drills
Drill bit & set type Drill Bits
Piece count 1
Brand KFFKFF
Features Handheld
Material Steel
Rec. use Construction
Model 89*350

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