The U Double Flute Masonry Core Drill Bit Series (3mm–14mm) is designed for high-performance drilling in brick, block, concrete, and natural stone. Featuring a precision-engineered U-type double flute design, these bits provide faster chip removal, reduced friction, and exceptional drilling stability — ideal for professional builders, installers, and construction tool distributors.

Each bit is made from premium alloy steel and equipped with a high-quality tungsten carbide tip, ensuring long-lasting durability and sharp cutting edges even under extreme working conditions. The U-shaped double flutes effectively guide dust and debris out of the hole, preventing clogging and heat buildup. Combined with a fully heat-treated body and CNC-ground precision flutes, the bit ensures smooth drilling performance and extended tool life.

The core-style cutting geometry enhances centering accuracy and reduces vibration, resulting in cleaner, rounder holes. Suitable for both rotary and hammer drills, this series is widely used in wall installations, electrical and plumbing projects, anchor hole drilling, and renovation work.

Every piece undergoes strict quality control, including hardness testing, tip alignment inspection, and dimensional verification — ensuring that each bit meets international standards for industrial use.

Specifications

Applications

Construction, renovation, and installation projects

Drilling wall holes for anchors, plugs, and fasteners

Electrical and plumbing pipe passages

Suitable for rotary drills, impact drills, and hammer drills

Widely used in bricklaying, tile fixing, HVAC installation, and interior decoration

Features & Advantages

U Double Flute Design for efficient chip evacuation and lower heat buildup

Carbide-tipped head offers long service life and faster penetration

Precision-ground body ensures smooth drilling and stable rotation

Heat-treated steel shank resists bending and wear

Compatible with multiple drill types for versatile operation

Available in 3–14mm sizes to meet all masonry drilling needs

FAQ

Q1: Can it drill through reinforced concrete?
A1: Yes, the carbide tip can penetrate mild reinforcement, but for heavy rebar, use SDS-Plus hammer bits.

Q2: What’s the best speed for masonry drilling?
A2: 800–1500 RPM depending on material hardness and drill type.

Q3: Can I use these bits on both hand drills and impact drills?
A3: Yes, suitable for both, especially effective on rotary and percussion drills.