Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 5/8" x 29" 48-20-3920

ENGINEERED FOR UNYIELDING PERFORMANCE IN REINFORCED CONCRETE

High-performance masonry drilling requires more than just raw power; it demands accessories engineered to handle the thermal stress of hard aggregate and the physical impact of rebar. The Milwaukee MX4™ 4-Cutter SDS MAX bit is designed with a solid head carbide that maintains structural integrity where standard bits fail. By integrating rebar guards and a sharp centering tip, this bit minimizes walking and prevents the catastrophic lock-ups that lead to snapped bits and jobsite downtime. For professionals tracking cost-per-hole, the optimized flute geometry not only clears dust faster but also reduces the load on the rotary hammer’s motor, extending battery runtime by up to 15% per charge.

• / Solid head carbide construction delivers up to 5x longer life in concrete with rebar compared to standard masonry bits.
• / Integrated rebar guards protect the carbide head from damage when encountering steel reinforcement, ensuring maximum durability in hard aggregate.
• / The 4-cutter geometry prevents binding and lock-up in rebar, providing smoother drilling and reducing the risk of tool kickback.
• / Sharp centering tip allows for exact spot drilling, preventing bit walk on smooth concrete surfaces or metal decking.
• / Wear mark indicator provides a clear visual cue when the bit no longer meets ANSI B212.15 requirements for precise anchor fitment.

WHAT'S IN THE BOX

(1) 5/8" x 24" x 29" MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit (48-20-3920)