4 Inch Diamond Core Drill Bit 1-1/4-7 Thread for Concrete with Rebar | Dekuch

About this item

Professional 4-inch diamond core drill bit with 1-1/4-7 thread for wet drilling in cured concrete with rebar, hard masonry, brick, block, stucco, stone, and mesh. Features high-quality diamond grit for efficient cutting and long service life.

Key Selling Points

• Specification: 4-inch diameter, 15-3/4 inch drilling depth, 1-1/4-7 standard thread fits most core drill machines.
• Simple Operation: Start at 15° angle, then vertical for stable drilling. Wet drilling extends life; dry for softer materials.
• Efficient & Smooth: High-quality diamond grit for sharp, consistent cutting. Recommended for handheld or rig use.
• Humanized Design: Precision-engineered sawteeth and concentric axis for high efficiency and durability.
• Versatile: Ideal for concrete, brick, tile, masonry, reinforced concrete, stone. Used for AC, pipes, railings, etc.

Use Cases

• Drilling holes for air conditioner installation
• Running pipes through concrete walls or floors
• Installing stair railings into concrete
• Creating openings for electrical conduits
• General construction and renovation drilling

Specifications

Diameter: 4 inches; Drilling Depth: 15-3/4 inches (400mm); Thread: 1-1/4-7 standard; Material: Diamond grit; Suitable for: Cured concrete with rebar, hard masonry, brick, block, stucco, stone, mesh; Drilling Method: Wet recommended, dry for softer materials.

Package Includes

• 1 x 4 Inch Diamond Core Drill Bit

How to Use

1. Attach bit to core drill machine with 1-1/4-7 thread.
2. For wet drilling, ensure water supply.
3. Start at a 15° angle to create a groove, then straighten to vertical.
4. Apply steady pressure.
5. For hard concrete, use wet drilling to extend bit life.

Suitable For

Cured concrete with rebar, hard masonry, brick, block, stucco, stone, mesh, reinforced concrete, tile.

Caution Notes

Always wear safety goggles and gloves. Use water for wet drilling to reduce dust and heat. Do not use for wood or metal. Ensure machine is compatible with 1-1/4-7 thread.