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Premium 2-1/4" Wet Core Drill Bit for Hard Concrete with High-Density Diamond, Precision-Welded Segments, 1-1/4"-7 UNC x 14" Depth, Industrial Grade for Concrete Rebar, Brick, Masonry, Pavers
✅ In stock
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Grade
Analysis Confidence
28%
🏷️ Price includes Coupon savings
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
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Price verified Sep 22, 2026 4:36 PM · Prices & availability subject to change
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📝 Product Overview
🏪 Sold by
DaduoRi
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓30% Faster Drilling: Tested on real construction sites, this core drill bit features ultra-high diamond concentration, delivering 30% faster drilling speed compared to standard core bits. It effortlessly cuts through reinforced concrete, masonry, brick, and block, saving time and effort on every job
✓80% Longer Lifespan: Equipped with premium Grade A diamonds and high-density distribution, this concrete core bit offers 80% longer lifespan than ordinary drill core bit. Its SMOOTH and CONSISTENT cutting ensures precise core extraction, reduces material waste, and extends the bit's durability
✓Outer Diameter: 2.25 inch; Thread Size: 1-1/4"-7 UNC standard thread. Fits most handheld core drills and core drill machines with rig. Adapter not included; available separately in our store
✓DaduoRi core drill bit uses upgraded-welded segment for high strength and precision, ensuring it is not easy to break, even in heavy-duty applications
✓The thickened barrel ensures a more robust drilling experience, while the 12mm high teeth increase the diamond quantity, significantly enhancing the 2 1/4 core drill bit's durability
⚙️ Specifications
Material
Diamond
Cutting Diameter
5.7 centimeters
Finish Type
Diamond
Shank Type
Threaded
Brand
DaduoRi
Brand Name
DaduoRi
Manufacturer
DaduoRi Tool
Part Number
2.25 in premium core drill bit
Best Sellers Rank
See Top 100 in Tools & Home Improvement
ASIN
B0G2JL5Y27
Customer Reviews
3.7
