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

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

The Milwaukee 48-20-7266 SDS MX4™ 4-Cutter Masonry Drill Bit is a high-performance SDS-Plus bit engineered for fast, durable drilling in concrete and masonry—especially concrete with rebar. Built with a solid head carbide tip and rebar guards, it delivers up to 5X longer life in concrete with rebar and is designed to handle hard aggregate with reduced wear. The 4-cutter head helps prevent lock-up when hitting rebar, minimizing downtime, while variable flutes clear dust faster to reduce heat and deliver up to 20% more holes per battery charge. A sharp centering tip improves accuracy when starting holes in concrete and metal decking, and a wear mark indicator shows when the bit reaches end of life and no longer meets the ANSI requirement. This bit is German made, meets ANSI B212.15 for common anchors, and fits all SDS-Plus rotary hammers.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 48-20-7266
• Brand / Series: Milwaukee SDS MX4™
• Product Type: SDS-Plus 4-cutter masonry drill bit
• Bit Diameter: 1-1/4"
• Usable Length: 16"
• Overall Length: 18"
• Head: Solid head carbide for up to 5X longer life in concrete with rebar
• Rebar Protection: Rebar guards for maximum durability in hard aggregate and rebar
• Tip: Sharp centering tip for exact spot drilling in concrete and metal decking
• Cutter Design: 4-cutter design helps prevent lock-up in rebar, reducing downtime
• Flutes: Variable flutes remove dust faster, reduce heat, and deliver up to 20% more holes per battery charge
• Wear Indicator: Wear mark indicator shows end of life and when bit no longer meets ANSI requirement
• Standards: Meets ANSI B212.15 to fit common anchors
• Applications: Ideal for concrete with rebar and masonry
• Compatibility: Fits all SDS-Plus rotary hammers
• Origin Detail: German made

Ideal For

• Drilling deep holes in concrete with rebar with reduced lock-up and downtime
• Masonry drilling where long life and durability in hard aggregate matter
• Faster, cleaner drilling with improved dust removal and reduced heat buildup
• Anchor installations requiring ANSI B212.15 compliance
• Users needing an SDS-Plus bit compatible with all SDS-Plus rotary hammers