Milwaukee SDS MAX 4CT MX4™ 1-1/8" X 31" X 36"

EXTREME AGGREGATE PENETRATION

When you are boring into high-density reinforced concrete on a bridge deck or a high-rise foundation, standard bits are just consumables that eat your profit margin. The Milwaukee 48-20-3967 MX4™ SDS MAX bit is engineered for the pure survival requirements of heavy civil sites. This isn't just about making holes; it's about maintaining structural concentricity while slamming through #8 rebar without snapping the head or blowing out your hammer's clutch. In our world, downtime is a death sentence for the schedule, and these German-made cutters are the only insurance policy worth having for high-torque rotary applications.

• / SOLID HEAD CARBIDE: Delivers extreme thermal resistance and up to 5x life when meeting high-PSI concrete and heavy reinforcement.
• / INTEGRATED REBAR GUARDS: Specialized geometry deflects the bit upon steel contact, preventing catastrophic binding and protecting the operator.
• / LARGE VOLUME FLUTES: Rapidly evacuates massive amounts of dust to reduce friction and maintain high drilling speeds in deep-hole applications.
• / WEAR MARK INDICATORS: Allows for rapid visual inspection to ensure the bit still meets strict ANSI B212.15 tolerances for critical anchor setting.
• / SHARP CENTERING TIP: Enables surgical precision during the initial strike, preventing bit-walk on slick cured surfaces or metal decking.

WHAT'S IN THE BOX

(1) MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit (48-20-3967)