3 Inch Diamond Core Drill Bits,1-1/4"-7 Thread Diamond Core Bit for Cured Concrete with Rebar, Hard Masonry, Brick Block, Stucco, Stone,Shark

About this item

3 Inch Diamond Core Drill Bits,1-1/4"-7 Thread Diamond Core Bit for Cured Concrete with Rebar, Hard Masonry, Brick Block, Stucco, Stone,Shark

Key Selling Points

• Specification:Diameter: 4inch, drilling depth: 15-3/4"/400mm, thread: 1‑1/4‑7 standard thread. It fits most standard core drill machines and offers stable, reliable performance for heavy‑duty tasks.
• Simple OperationThis core drill supports wet drilling for concrete. Start at a 15° angle, then move to a vertical position and continue drilling for stable and easy operation. Using water extends service life, while dry drilling is acceptable for softer construction materials.
• Efficient & Smooth Drilling:Made with high‑quality diamond grit, this core drill delivers sharp, consistent cutting and a longer service life. It is highly recommended for use with handheld core drills or dedicated core drill rigs to maximize efficiency.
• Humanized Structure:The diamond wet core bit features precisely engineered sawteeth and concentric axis design. This advanced structure ensures high drilling efficiency while maintaining exceptional durability.
• Versatile Uses:This core drill is ideal for drilling concrete, brick, tile, masonry, reinforced concrete, stone, and more. It is widely used for installing air conditioners, pipes, stair railings, and other construction or renovation projects.
• Category: Other