MilwMilwaukee SDS MX4™ 4-Cutter Masonry Drill Bit, 1-1/8"X8"X10"

Milwaukee SDS MX4™ 4-Cutter Masonry Drill Bit, 1-1/8"X16"X18"

The 48-20-7256 Milwaukee SDS MX4™ 4-Cutter Masonry Drill Bit is a jobsite-tough rotary hammer bit built for fast, accurate drilling in concrete and masonry—especially concrete with rebar. Its solid head carbide and 4-cutter design help prevent lock-up in rebar, while variable flutes clear dust quickly to reduce heat and support longer runtime on cordless tools. A wear mark indicator helps show end-of-life and when the bit no longer meets ANSI anchor-hole requirements.

Country of Origin
Made in Germany

Key Features / Specifications

• Model / Part Number: 48-20-7256
• Brand / Series: Milwaukee SDS MX4™
• Product Type: 4-cutter masonry drill bit
• Size: 1-1/8 in diameter
• Overall Length: 18 in
• Usable / Drilling Length: 16 in
• Shank Type: SDS-Plus (fits all SDS-Plus rotary hammers)
• Tip / Head: Solid head carbide for up to 5x longer life in concrete with rebar
• Durability Features: Rebar guards for maximum durability in hard aggregate and rebar
• Accuracy: Sharp centering tip for exact spot drilling in concrete and metal decking
• Design: 4-cutter head to help prevent lock-up in rebar and reduce downtime
• Dust Removal: Variable flutes remove dust faster to reduce heat and deliver up to 20% more holes per battery charge
• Standards / Compatibility: Meets ANSI B212.15 to fit common anchors
• Wear Indicator: Wear mark indicator shows end of life and when the bit no longer meets the ANSI requirement
• Application Focus: Ideal for concrete with rebar and masonry

Ideal For

• Drilling anchor holes that need ANSI B212.15 compliance
• Concrete work involving rebar where avoiding bit lock-up is critical
• High-production drilling where fast dust evacuation reduces heat and improves efficiency
• Accurate starts in concrete and metal decking using the centering tip
• Users running SDS-Plus rotary hammers in demanding masonry applications