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4 1/4" Dry Core Drill Bit, 5/8"-11 Thread, with 3 Adapters Included: SDS Plus, SDS Max and 1/2" Hex Shank, 9.5" Drilling Depth, 4.25in Core Bits for Concrete, Brick, Block, Stucco and Masonry
✅ In stock
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Grade
Analysis Confidence
33%
🏷️ Price includes Coupon savings
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
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Price verified Sep 21, 2026 9:33 PM · Prices & availability subject to change
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📝 Product Overview
🏪 Sold by
DaduoRi
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【Complete Package】Includes 5/8"-11 Thread Adapters to SDS Plus, SDS Max, and 1/2" Hex Shank, along with a User Manual and Dry Core Drill Bit (4.25-inch diameter with a 5/8-11 thread and a maximum working depth of 9.5 inches)
✓【Versatile Compatibility】Equipped with adapters for easy use with rotary hammers and standard drills, compatible with both fixed or handheld drilling machines with 5/8-11 threads, ensuring broad applicability and flexibility in various drilling scenarios (Never use the hammering mode)
✓【Efficient Dry Drilling】This 4 1/4" concrete drill bit designed for dry drilling but recommended to use water when encountering concrete (non-reinforced) to prevent tooth breakage and enhance drilling efficiency
✓【High Concentricity】DaduoRi 4 1/4 inch dry diamond core drill bits for concrete ensures uniform and precise cutting, enhancing overall drilling performance
✓【Compatible Materials】Suitable for drilling into Brick, Block, Stucco, and Masonry, making it good for HVAC installation, electrical work, and plumbing projects
⚙️ Specifications
Material
Cobalt Steel
Cutting Diameter
10.8 centimeters
Finish Type
Uncoated
Shank Type
Threaded
Brand
DaduoRi
Brand Name
DaduoRi
Model
4 1/4" dry core drill bit
Unit Count
1 Count
Number of Packs
1
Manufacturer
DaduoRi Tool
Part Number
DaduoRi 4.25 inch dry concrete core bits
