Milwaukee MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 48-20-3944

DOMINATE REINFORCED CONCRETE WITH 4-CUTTER PRECISION

When your crew is drilling high volumes of anchor holes in structural concrete, downtime caused by rebar strikes is a profit killer. The Milwaukee MX4 4-Cutter SDS Max bit is engineered to eliminate that bottleneck. Featuring a solid head carbide design, this bit provides a symmetrical 4-cutter geometry that prevents the head from locking up or wandering when it encounters steel reinforcement. This mechanical advantage ensures a rounder, more consistent hole, which is critical for meeting strict ANSI compliance during heavy-duty anchoring applications. The optimized flute geometry works in tandem with the head to evacuate dust at a higher velocity, reducing thermal build-up and extending the runtime of your cordless rotary hammers by up to 15% per charge.

• / Solid Head Carbide construction delivers up to 5x longer service life in rebar-reinforced concrete compared to standard bits.
• / Integrated rebar guards protect the carbide head from catastrophic failure during high-torque aggregate encounters.
• / Sharp centering tip eliminates bit walk, allowing for exact spot drilling on smooth surfaces and metal decking.
• / Wear mark indicators provide a clear visual cue for when the bit no longer meets ANSI B212.15 tolerances for anchor fitment.

WHAT'S IN THE BOX

(1) 7/8" x 8" x 13" MX4 4-Cutter SDS Max Rotary Hammer Drill Bit (48-20-3944)