• 30% Faster Drilling: Tested on real construction sites, this concrete 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 diamond 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: 3 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
• Precision-Welded Teeth for Strength and Durability: This 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 3 core drill bit's durability
• Industrial-Grade Quality for Professional Use: Perfect for drilling medium to high-strength reinforced concrete, building walls, brick, masonry, pavers, stone, plaster, slate, and asphalt, this core bit for concrete is a better choice for contractors and heavy-duty projects
• At DaduoRi, we focus on providing efficient, reliable, and high-quality core drilling solutions for every project

• Package Dimensions ‏ : ‎ 17.3 x 3.3 x 3.3 inches; 4.6 Pounds
• Date First Available ‏ : ‎ March 24, 2025
• Manufacturer ‏ : ‎ DaduoRi Diamond Tool
• Country of Origin ‏ : ‎ China