Milwaukee MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 3/8" x 8" x 13" 48-20-3901

MAXIMIZE UPTIME IN REINFORCED CONCRETE WITH MX4 TECHNOLOGY

When drilling into high-PSI concrete laced with rebar, mechanical reliability is the difference between a productive shift and costly downtime. The Milwaukee MX4 4-Cutter SDS Max bit is engineered for the professional who demands a high return on investment and superior tool longevity. By utilizing a solid head carbide design, these bits maintain structural integrity where standard tipped bits often shear. The integrated rebar guards and symmetrical 4-cutter geometry ensure that when you encounter steel, the bit continues to chew through the material rather than locking up, protecting both your rotary hammer's internal clutch and the operator's wrists. Furthermore, the optimized flute geometry isn't just about speed; it's about thermal management. Faster dust extraction reduces heat buildup, which directly correlates to a 15% increase in holes per battery charge—a critical efficiency metric for those running cordless SDS Max platforms on high-volume jobsites.

• / Solid Head Carbide construction delivers up to 5x longer life in heavy rebar and hard aggregate applications.
• / Integrated 4-cutter design prevents binding and lock-up when hitting rebar, ensuring smooth, continuous drilling.
• / Optimized variable flutes remove dust faster to reduce friction and deliver up to 15% more holes per charge.
• / Wear mark indicators provide a clear visual cue for ANSI B212.15 compliance, ensuring every hole meets anchor specifications.
• / Sharp centering tip allows for exact spot drilling, preventing bit walk on smooth concrete or metal decking.

WHAT'S IN THE BOX

(1) 3/8" x 8" x 13" MX4 4-Cutter SDS Max Rotary Hammer Drill Bit (48-20-3901)