Milwaukee 1-1/8" x 13" x 18" MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 48-20-3949

ELITE REBAR-STRIKE RESILIENCE

When your crew is boring deep into structural concrete, the last thing you can afford is a bit seizing on a #5 rebar strike. The Milwaukee MX4 4-Cutter SDS Max series is the fleet manager's answer to high-cycle drilling overhead, engineered to eliminate the catastrophic failure points common in standard masonry accessories. By utilizing a solid-head carbide design, these bits maintain structural integrity under the extreme thermal loads generated by high-torque rotary hammers. The precision quad-cutter geometry ensures the bit doesn't track off-center or seize when encountering embedded steel, protecting your tool's internal clutch and maximizing the lifecycle of your high-performance investment.

• / SOLID HEAD CARBIDE: Delivers up to 5x more life than standard bits when drilling through rebar-heavy aggregate.
• / REBAR GUARDS: Integrated sacrificial zones shield the bit from fracturing upon high-velocity impact with embedded steel.
• / SHARP CENTERING TIP: Eliminates bit-walk on smooth concrete and metal decking for dead-accurate hole placement.
• / OPTIMIZED FLUTE GEOMETRY: Enhances dust extraction efficiency, reducing internal friction and heat to provide more holes per battery charge on cordless platforms.
• / WEAR MARK INDICATOR: Provides immediate visual confirmation of ANSI B212.15 compliance, ensuring anchors are set with proper tolerance.

WHAT'S IN THE BOX

(1) MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 1-1/8" x 13" x 18" (48-20-3949)