Milwaukee SDS-Plus MX4 3/8" x 4" x 6" Drill Bit – Carbide Masonry Bit for Concrete & Rebar

The Milwaukee SDS-Plus MX4 3/8" x 4" x 6" Drill Bit (48-20-7351) is engineered for high-performance drilling in concrete, masonry, and reinforced materials.

Its carbide-tipped 4-cutter design delivers faster drilling speeds and improved durability when working with rebar and hard aggregate.

Rebar guard technology enhances resistance against damage and reduces bit lock-up, ensuring smoother operation and less downtime.

The variable flute design improves dust removal, allowing up to 20% more holes per battery charge in cordless rotary hammer applications.

Key Features – Milwaukee MX4 3/8"

• 3/8 inch SDS-Plus masonry drill bit
• 4-cutter carbide tip for durability
• Rebar guard reduces breakage and lock-ups
• Up to 20% more holes per charge
• Fast dust removal variable flute design
• Wear mark indicator for replacement timing
• Reduced vibration for smoother drilling
• Ideal for concrete and reinforced masonry

Technical Specifications

Ideal Applications

• Concrete and masonry drilling
• Rebar and reinforced concrete work
• Electrical and anchor installations
• Construction and industrial projects
• Professional contractor use

A high-performance masonry drill bit designed for speed, durability, and precision in demanding job site conditions.